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MRCEM Part C · OSCE Preparation

OSCE Station Bank 9

10 new structured stations — ACS risk stratification, eating disorders, hernia and testicular torsion, AED defibrillation, DAS failed intubation, DNACPR, SBAR handover, blood film and FAST scan interpretation.

0/ 10 completed
10Stations
5Domain types
8Min / station
0/10 completed
📋 History Taking
📋
Chest Pain History — ACS Risk Stratification
History · 8 minStation 1 of 10
8:00
Station type
History Taking
Time allowed
8 minutes
Pass mark
12 / 20
📄 Candidate Briefing
👁 Examiner Instructions
✅ Mark Scheme

📄 Candidate Instructions

You are the ED doctor. Mr Hassan Malik, 61 years old, presents with a 90-minute history of central crushing chest pain radiating to the left arm. He is diaphoretic and pale.

Triage obs: HR 96, BP 154/92, RR 20, SpO₂ 96% on air, Temp 36.9°C. 12-lead ECG has been performed — the nurse tells you it shows ST depression in leads V4–V6 and lateral leads.

Please take a focused chest pain history, calculate a HEART score, and explain your management plan to Mr Malik. You have 8 minutes.

💡 SOCRATES, HEART Score, ACS Differentials and Management ▼
  • SOCRATES for chest pain: Site — central, substernal. Onset — sudden or gradual. Character — crushing, pressure, tightness, heaviness ("like an elephant on my chest"). Radiation — left arm, jaw, neck, epigastrium, right arm, interscapular (latter suggests dissection). Associated features — diaphoresis, nausea, vomiting, dyspnoea, palpitations, presyncope. Timing — onset, duration, constant vs intermittent. Exacerbating/relieving — rest, GTN (ACS relieved; pericarditis relieved by leaning forward; pleuritic pain worse on inspiration). Severity 1–10.
  • HEART Score (0–10; score ≥4 = high risk; ≤3 = low risk):
    • H — History: Highly suspicious (crushing, radiation, diaphoresis) = 2. Moderately suspicious = 1. Slightly suspicious = 0.
    • E — ECG: LBBB or ST elevation = 2. Non-specific repolarisation disturbance = 1. Normal = 0. This patient: ST depression = 1.
    • A — Age: ≥65 = 2. 45–64 = 1. <45 = 0. This patient: 61 years = 1.
    • R — Risk factors: ≥3 known risk factors OR history of atherosclerotic disease = 2. 1–2 risk factors = 1. None = 0. (Risk factors: hypertension, hypercholesterolaemia, DM, obesity BMI >30, smoking, family history of CAD in first-degree relative <65 female / <55 male, previous ACS/PCI/CABG.)
    • T — Troponin: >3× normal = 2. 1–3× normal = 1. ≤normal = 0. High-sensitivity troponin — 0h and 3h algorithm (ESC); or 0h and 1h algorithm with hs-cTnI/hs-cTnT.
  • Risk factors to elicit: Hypertension, type 1 or 2 DM, hypercholesterolaemia (statin use), current/ex-smoker, family history (first-degree relative <55 male / <65 female), previous ACS, previous PCI or CABG, peripheral vascular disease, stroke/TIA, known AF.
  • Medications: Current aspirin? GTN — how often used? Beta-blockers, ACE inhibitors, statins, anticoagulants, PDE5 inhibitors (sildenafil — absolute CI to nitrates), OCP/HRT (thrombotic risk).
  • Differentials: STEMI (ST elevation — immediate PCI or thrombolysis). NSTEMI (troponin rise, no ST elevation). Unstable angina (no troponin rise, ECG changes). Aortic dissection — tearing/ripping pain, interscapular radiation, unequal blood pressures arms, wide mediastinum on CXR, pulse differential. PE — pleuritic, dyspnoea, risk factors, raised D-dimer. Pericarditis — sharp, pleuritic, worse lying flat, relieved leaning forward, pericardial rub, saddle-shaped ST elevation. Oesophageal spasm (relieved by GTN — confusing). Boerhaave's (post-vomiting, surgical emphysema). Musculoskeletal (reproduced on palpation).
  • Thrombolysis contraindications (if STEMI and no PCI available): Absolute: previous haemorrhagic stroke ever; ischaemic stroke in last 6 months; active internal bleeding; suspected aortic dissection; significant closed head or facial trauma in last 3 months; intracranial neoplasm. Relative: hypertension >180/110 unresponsive to treatment; traumatic CPR; pregnancy; anticoagulant use.
  • Management of NSTEMI/High-risk NSTEMI: Aspirin 300mg stat. Ticagrelor 180mg loading (NICE preferred over clopidogrel for NSTEMI unless on anticoagulation). IV access, bloods — hs-troponin serial, FBC, U&E, LFT, coagulation, glucose, lipids. 12-lead ECG serial. O₂ only if SpO₂ <94%. IV morphine (± metoclopramide) for pain. IV nitrate if ongoing pain (not if SBP <90 or PDE5 inhibitor within 24h). Anticoagulation — LMWH (enoxaparin) or fondaparinux or UFH. Cardiology referral — urgent in-hospital catheterisation within 24–72h for NSTEMI (GRACE score >140 = within 24h). Beta-blocker if ongoing tachycardia/hypertension and no contraindication.

⚠️ Examiner / Role-player Instructions — Not for Candidate

You are Mr Hassan Malik. You are frightened. You have hypertension (on amlodipine), type 2 diabetes (on metformin), and you smoke 10 cigarettes/day. Your father died of a heart attack aged 58. You had a PTCA (stent) in 2018 for angina. You are on aspirin 75mg daily but have NOT had GTN in the last year. No sildenafil. ECG as described. This is an NSTEMI. HEART score = History 2 + ECG 1 + Age 1 + Risk 2 (previous atherosclerotic disease) + Troponin TBD = at least 6 without troponin = high risk.

🎭 Patient Script ▼
  • Pain: Central crushing chest tightness — "like something is squeezing my chest really hard." Started 90 minutes ago while walking up stairs. Radiating to left arm and jaw. Diaphoresis. Nausea, no vomiting. Severity 8/10. No relief with rest.
  • GTN: Has GTN spray but hasn't used it in years — "I thought I was over the heart problem."
  • No dissection features: No tearing or back pain. Both arms equal. No neurological symptoms.
  • Risk factors (disclose when asked): Blood pressure tablets (amlodipine). Diabetes tablets (metformin). Smokes 10/day for 30 years. Father had a heart attack at 58. Had a stent in 2018.
  • Hidden concern: "Am I having a heart attack, doctor? My dad died from one."
🔔 Examiner Cues ▼
  • If candidate gives GTN when SBP unknown: "Would you give nitrates without knowing his blood pressure?"
  • If candidate doesn't ask about PDE5 inhibitors: "Is there anything specific you'd need to exclude before giving sublingual GTN?"
  • At 7 minutes: "Calculate his HEART score and tell me your management plan and cardiology referral pathway."
CriterionMarks
SOCRATES
Full SOCRATES elicited — character (crushing), radiation (left arm/jaw), associated features (diaphoresis, nausea), severity, onset, relieving factors2
GTN use asked — prior use and effectiveness1
HEART Score
HEART score components named and applied — History, ECG, Age, Risk factors, Troponin2
Correctly calculates score ≥6 (high risk) from available data: History 2, ECG 1, Age 1, Risk factors 2 (previous atherosclerotic disease)2
Risk Factors
Risk factors elicited — hypertension, DM, smoking, family history, previous stent (2018) — all identified2
PDE5 inhibitors asked before planning nitrates1
Differentials
Aortic dissection excluded — no interscapular radiation, no BP differential, no tearing character2
STEMI vs NSTEMI vs UA differentiated — states this patient NSTEMI (ST depression, awaiting troponin, no ST elevation)1
Management
Aspirin 300mg + ticagrelor 180mg loading — dual antiplatelet stated2
Serial hs-troponin, serial ECG, IV access, analgesia, anticoagulation (LMWH/fondaparinux) planned1
Cardiology referral — urgent (GRACE >140 or high HEART = catheterisation within 24h)1
Empathic response to patient's fear — addresses concern about heart attack sensitively1
Total20
📋
Eating Disorder History — Anorexia Nervosa
History · 8 minStation 2 of 10
8:00
Station type
History Taking
Time allowed
8 minutes
Pass mark
12 / 20
📄 Candidate Briefing
👁 Examiner Instructions
✅ Mark Scheme

📄 Candidate Instructions

You are the ED doctor. Miss Charlotte Webb, 17 years old, has been brought to ED by her mother, who is worried about significant weight loss over the past 6 months. Charlotte was previously a healthy weight. Her current BMI is 15.2 kg/m².

Obs: HR 52, BP 96/60 (postural drop 18mmHg on standing), RR 14, Temp 35.9°C, BM 3.6 mmol/L. She is alert, thin, and appears cold.

Charlotte's mother has stepped out of the room. Please take a focused history from Charlotte and outline your immediate assessment and management plan. You have 8 minutes.

💡 Eating Disorder History — Key Areas, SCOFF, MARSIPAN ▼
  • Approach — non-judgmental, compassionate: Introduce yourself. Ask Charlotte how she is feeling today — open question. Normalise the consultation. Avoid language about weight, calories, or food quantities as leading or value-laden (e.g. do not say "you're not eating enough" or "you're too thin"). Use phrases like "Can you tell me about your eating?" rather than "Why won't you eat?" Do not express shock at findings.
  • Eating and dietary history: What does she eat in a typical day? Are there foods she avoids or considers "unsafe"? Does she have rules about eating — timing, amounts, rituals? Calorie counting — is she aware of calorie content of foods? Any fear of eating certain foods? How long has this been going on?
  • Compensatory behaviours: After eating, does she feel guilty or anxious? Has she ever made herself vomit? Use of laxatives, diuretics, diet pills? Exercise — how much, does she feel compelled to exercise even when tired or unwell? (Compulsive exercise is a compensatory behaviour in anorexia and bulimia.)
  • Body image: How does she feel about her body? Does she feel she is a certain size or shape even if others say otherwise? Does she weigh herself — how often? Is her weight or shape very important to how she feels about herself overall?
  • Weight history: Highest weight, current weight, rate of loss (6 months). Does she know her current weight? What weight does she want to be? Lowest ever weight. Does she feel her current weight is too high?
  • SCOFF Questionnaire (5 questions — score ≥2 = possible eating disorder):
    • S — Do you make yourself Sick because you feel uncomfortably full?
    • C — Do you worry you have lost Control over how much you eat?
    • O — Have you recently lost more than One stone (6 kg) in a 3-month period?
    • F — Do you believe yourself to be Fat when others say you are too thin?
    • F — Would you say that Food dominates your life?
  • Physical and psychiatric comorbidities: Amenorrhoea (secondary — >3 months absent periods in someone who has previously had periods). Dizziness/syncope — postural hypotension (significant here). Palpitations. Cold intolerance. Constipation. Low mood, anxiety, OCD features, self-harm, suicidal ideation.
  • Physical examination findings in anorexia (for context): Lanugo hair (fine downy hair — thermoregulatory response). Russell's sign (calluses on dorsum of knuckles — from self-induced vomiting, from teeth scraping). Dental erosion (from vomiting). Parotid hypertrophy. Peripheral oedema (refeeding syndrome risk).
  • Risk assessment — bloods and investigations: U&E (hypokalaemia — risk of cardiac arrhythmia; hyponatraemia; hypophosphataemia — critical in refeeding syndrome). FBC (anaemia, leucopenia). LFT and albumin. Blood glucose (hypoglycaemia — BM 3.6 here). 12-lead ECG — QTc prolongation (hypokalaemia + malnourishment = risk of Torsades de Pointes). Bone density (osteoporosis — long-term).
  • MARSIPAN / Junior MARSIPAN criteria (medical admission): Pulse <50 or >150. Systolic BP <90. Postural drop >10mmHg. Temp <35.5°C. BMI <13 (adult) / weight below 75% median weight (paediatric — use BMI centile for age). Serum K⁺ <3.0 or glucose <3.0 mmol/L. Syncope. Muscle weakness (cannot stand from squat test). This patient meets multiple criteria: bradycardia 52, postural drop 18mmHg, Temp 35.9, BMI 15.2 (child).
  • Safeguarding and consent (under 18): Charlotte is 17. She has Gillick competence if she understands the information — can consent to and refuse treatment in most contexts. However, at risk of serious harm — parents/guardians should be involved. If Charlotte lacks capacity or refuses life-saving treatment — MHA 1983 Section 3 or MCA 2005 best interests decision may apply in extremis. Document carefully. Involve CAMHS urgently. Do not involve mother without Charlotte's agreement unless immediate risk.
  • CAMHS and multidisciplinary team: This patient requires urgent inpatient medical admission (MARSIPAN criteria met). CAMHS should be contacted for urgent psychiatric assessment. Dietitian involved for refeeding protocol. Family therapy is first-line psychological treatment for anorexia in under-18s. Nasogastric feeding if refusing oral nutrition and medically compromised.

⚠️ Examiner / Role-player Instructions — Not for Candidate

You are Miss Charlotte Webb. You are quiet, guarded and slightly defensive at the start. You do not think you have a problem — "I'm just eating healthily." You will open up if the candidate is warm, non-judgmental, and asks open questions. You are frightened of gaining weight. You have not had a period for 4 months. You do not vomit but do excessive exercise (2 hours/day minimum). You score 4/5 on SCOFF. Escalate distress if candidate focuses on weight numbers or uses alarming language.

🎭 Patient Script ▼
  • Opening: "I'm fine. My mum overreacts about everything. I've just been eating healthily and exercising."
  • Food/restriction (if asked gently): Eats very small amounts — mostly salad and fruit. Avoids carbohydrates completely — "carbs make you fat." Counts calories obsessively. Will not eat over 600 kcal/day.
  • Exercise: Runs 10km every morning plus gym in the evening. Feels extremely guilty if she misses a session. Exercises even when dizzy.
  • Body image: Feels she is "still fat" despite being BMI 15.2. Weighs herself three times a day. Her weight is the most important thing to her.
  • Periods: Haven't come for 4 months — "I don't care, I didn't like them anyway."
  • SCOFF: No purging. +Control. +One stone (lost much more). +Feels fat. +Food dominates life. Score 4/5.
  • If candidate asks about self-harm: "I don't cut myself or anything. I'm not crazy." No suicidal ideation.
  • If candidate is judgmental or says "you're not eating enough": Closes down — "I knew you wouldn't understand. You just want to make me fat."
🔔 Examiner Cues ▼
  • If candidate uses judgmental language: "Charlotte becomes withdrawn and stops engaging — how do you re-establish rapport?"
  • If candidate hasn't asked about SCOFF by 5 minutes: "Is there a validated screening tool you'd use here?"
  • At 7 minutes: "Based on your assessment, does Charlotte need admission? What criteria have been met?"
CriterionMarks
Approach and Communication
Non-judgmental, compassionate opening — uses open questions; does not use weight-focused or triggering language throughout2
Eating and Compensatory Behaviour History
Dietary restriction explored — food rules, calorie counting, avoidance of food groups2
Compensatory behaviours explored — purging, laxatives, excessive compulsive exercise (identified here)2
Body image distortion explored — feels fat despite low BMI, frequent weighing1
Physical and Psychiatric Screening
Weight history and rate of loss, amenorrhoea (4 months) elicited2
Physical symptoms — dizziness, palpitations, cold intolerance, syncope asked1
SCOFF questionnaire applied — score 4/5 obtained; ≥2 = possible eating disorder confirmed2
Risk Assessment
Medical investigations — electrolytes (hypokalaemia risk), ECG (QTc), blood glucose, FBC; identifies BM 3.6 and bradycardia 52 as concerning2
Physical signs mentioned — lanugo, Russell's sign, dental erosion, parotid swelling1
Management and Safeguarding
MARSIPAN admission criteria identified — bradycardia, postural drop, hypothermia, low BMI; states admission required2
CAMHS referral, Gillick competence considered, parent involvement discussed sensitively with Charlotte1
Total20
🩺 Clinical Examination
🩺
Hernia Examination — Inguinal and Femoral
Examination · 8 minStation 3 of 10
8:00
Station type
Examination
Time allowed
8 minutes
Pass mark
12 / 20
📄 Candidate Briefing
👁 Examiner Instructions
✅ Mark Scheme

📄 Candidate Instructions

You are the ED doctor. Mr George Patel, 72 years old, presents with a right groin lump that has been present for 3 months. He notices it appears when he stands and disappears when he lies down. He has occasional discomfort on straining. No pain at rest, no vomiting, no change in bowel habit.

Obs: Afebrile, HR 72, BP 134/80. Comfortable at rest. A reducible right groin lump is visible when standing.

Please perform a focused groin/hernia examination. The examiner will provide findings. Present your diagnosis and management plan.

🔑 Hernia Examination — Structured Approach ▼
  • Anatomical landmarks (know these precisely): Anterior superior iliac spine (ASIS). Pubic tubercle (PT). Inguinal ligament runs from ASIS to PT. Deep inguinal ring — 1.5cm above the midpoint of the inguinal ligament (mid-inguinal point). Superficial inguinal ring — just above and medial to PT. Femoral canal — below the inguinal ligament, medial to the femoral vein, lateral to the PT.
  • Classification by location relative to the pubic tubercle: Inguinal hernia (direct or indirect) — exits ABOVE and MEDIAL to the PT, through the superficial inguinal ring. Femoral hernia — exits BELOW and LATERAL to the PT, through the femoral canal. Memory: "Inguinal = I (above and medial) = ladies first = inferior risk but much more common; Femoral = F (below and lateral) = Far side = higher strangulation risk."
  • Examination with patient STANDING: Inspect both groins. Note position of lump relative to PT (above/medial vs below/lateral). Ask patient to cough — visible cough impulse (lump appears or enlarges on coughing). Note if lump descends into scrotum (suggests indirect inguinal — travels through inguinal canal into scrotum).
  • Reducibility: Ask patient to lie down — does lump reduce spontaneously? If not, gently press the lump back through the defect (direct — reduces straight back; indirect — reduces along canal). A hernia that cannot be reduced is irreducible/incarcerated. An irreducible hernia that is tender + tense + overlying skin changes = strangulated — surgical emergency.
  • Deep ring occlusion test (distinguishes direct from indirect inguinal hernia): Reduce hernia. Occlude the deep inguinal ring (1.5cm above mid-inguinal point — press firmly). Ask patient to cough. If hernia is controlled (does not reappear) = indirect (passes through deep ring). If hernia bulges despite deep ring occlusion = direct (comes through posterior wall of inguinal canal, medial to deep ring). Note: this test requires practice — the candidate should describe the technique even if performing on a manikin.
  • Percussion: Over the lump. Tympanic (resonant) = bowel content. Dull = omentum or fluid.
  • Auscultation: Bowel sounds over hernia. Presence of bowel sounds = bowel content.
  • Transillumination: Hernias do NOT transilluminate (unlike hydroceles — fluid-filled scrotal swellings). If examining a scrotal swelling — transilluminate. Positive = hydrocele. Negative = hernia or solid lesion.
  • Femoral hernia: Most common in women (though inguinal still most common overall in women). Has the highest strangulation risk of all groin hernias — narrow femoral canal. More likely to present with obstruction. Examine for femoral hernia specifically — below and lateral to PT, medial thigh, in the femoral triangle. Often smaller and not obviously a cough impulse.
  • Strangulation signs — surgical emergency: Tender, hard, irreducible. Overlying skin red and warm. Systemically unwell (fever, tachycardia, vomiting). Bowel obstruction symptoms. Do NOT attempt forceful reduction if strangulation suspected — risk of reducing gangrenous bowel into abdomen.
  • Management: Reducible indirect inguinal hernia — elective surgical repair (mesh — Lichtenstein technique is standard open repair; laparoscopic TAPP/TEP). Irreducible — urgent surgical review. Strangulated — emergency surgery. Femoral hernia — all require surgical repair due to high strangulation risk, even if asymptomatic.

⚠️ Examiner Instructions — Not for Candidate

Feed these findings: Right groin lump above and medial to the right pubic tubercle. Cough impulse present. Reducible when supine. Percussion: tympanic. Auscultation: bowel sounds present. Transillumination: negative. Deep ring occlusion test: controls hernia — indirect inguinal hernia. No tenderness, no erythema, no strangulation features. Left groin — no lump, no cough impulse. If candidate doesn't perform deep ring occlusion test: "How would you distinguish a direct from an indirect inguinal hernia on examination?"

🔔 Examiner Cues ▼
  • If candidate doesn't examine with patient standing: "Is there a position in which this examination is more informative?"
  • If candidate doesn't examine for femoral hernia: "Is there another type of groin hernia you want to specifically check for?"
  • If candidate attempts to reduce a strangulated hernia (hypothetical): "The hernia is now tender and irreducible with red overlying skin — what does that change?"
  • At 7 minutes: "What is the management for this reducible indirect inguinal hernia, and does a femoral hernia require a different approach?"
CriterionMarks
Inspection
Examination performed with patient standing — lump inspected, location relative to pubic tubercle identified2
Cough impulse assessed; descent into scrotum noted1
Palpation and Reducibility
Reducibility tested — patient supine, hernia reduced manually1
Deep ring occlusion test performed — distinguishes indirect from direct inguinal hernia2
Percussion (tympanic = bowel) and auscultation (bowel sounds) over hernia1
Transillumination — negative (distinguishes from hydrocele)1
Completeness
Contralateral groin examined1
Femoral hernia specifically assessed — below and lateral to pubic tubercle2
Strangulation signs assessed — tender, irreducible, erythema; states strangulation = surgical emergency, do not reduce2
Diagnosis and Management
Correct diagnosis — right indirect inguinal hernia, reducible, no strangulation2
Management — elective surgical repair (Lichtenstein mesh or laparoscopic); femoral hernia = all require repair due to strangulation risk2
Clear, structured examination with patient explanation1
Total20
🩺
Scrotal Examination — Testicular Torsion
Examination · 8 minStation 4 of 10
8:00
Station type
Examination
Time allowed
8 minutes
Pass mark
12 / 20
📄 Candidate Briefing
👁 Examiner Instructions
✅ Mark Scheme

📄 Candidate Instructions

You are the ED doctor. Mr Liam O'Brien, 16 years old, presents with a 3-hour history of sudden onset severe right scrotal pain that woke him from sleep. He feels nauseated. No urinary symptoms, no fever, no recent sexual activity.

Obs: HR 108 (pain), Temp 37.0°C, BP 122/76. Right scrotal swelling and redness visible. He is clearly in pain.

Please perform a focused scrotal examination. The examiner will provide findings. Present your immediate management plan.

🔑 Scrotal Examination and Testicular Torsion ▼
  • Critical safety point — testicular torsion is a surgical emergency: Peak age 14–18 years. Sudden onset severe testicular pain is torsion until proven otherwise. The 6-hour rule: salvage rate is ~100% if surgically explored within 6 hours, ~70% at 12 hours, ~20% at 24 hours. Do NOT wait for Doppler ultrasound if clinical suspicion is high — the delay risks orchiectomy.
  • Inspection: Ask patient to stand initially. Note: position of affected testis — high-riding (torsion pulls testis upward as spermatic cord twists). Horizontal lie (Bell clapper deformity — bilateral in 40% — predisposes to torsion). Erythema and oedema of scrotal skin. Absence of normal left-right testicular asymmetry in position.
  • Palpation: Palpate gently. In torsion: testis is diffusely tender — cannot identify a distinct posterior epididymis. In epididymo-orchitis: tenderness initially localised to posterior epididymis with relatively preserved testicular tenderness early on. Loss of posterior groove (the groove between epididymis and testis is obliterated in torsion due to swelling). Examine spermatic cord — tender, oedematous cord in torsion. Hard tender nodule at upper pole = torsion of hydatid of Morgagni (appendix testis — may show "blue dot sign" through skin).
  • Cremasteric reflex: Stroke inner thigh — normal response is ipsilateral testicular ascent (cremasteric contraction). In torsion: cremasteric reflex is ABSENT (sensitivity ~85%). Its absence is a significant positive finding. Its presence does NOT reliably exclude torsion. Document carefully.
  • Prehn's sign: Elevating the testis relieves pain in epididymo-orchitis (Prehn's positive). Does NOT relieve or may worsen pain in torsion (Prehn's negative). This test has poor sensitivity and specificity (~60–70%) — do NOT use to exclude torsion. Candidate should know about this test but state it is unreliable.
  • Transillumination: Fluid-filled hydrocele transilluminates (positive). Torsion — swollen testis does NOT transilluminate. Useful to distinguish hydrocele but does not exclude torsion.
  • Contralateral testis: Always examine — look for Bell clapper deformity (horizontal lie) on contralateral side — risk of bilateral torsion. Bell clapper = congenital failure of testis to fix to tunica vaginalis.
  • Inguinal examination: Inguinal lymphadenopathy. Inguinal ring — exclude indirect inguinal hernia extending into scrotum.
  • Differentials: Testicular torsion (this case — sudden onset, high-riding, absent cremasteric reflex). Epididymo-orchitis (usually older, sexually active, urinary symptoms, posterior tenderness, cremasteric reflex usually preserved, fever). Torsion of hydatid of Morgagni (younger, less severe, blue dot sign at upper pole). Orchitis (mumps — bilateral, parotitis). Inguinal hernia with testicular involvement. Testicular tumour (painless usually, firm — though haemorrhage into tumour can cause pain). Fournier's gangrene (perineal necrotising fasciitis — severe, crepitus, systemic sepsis — emergency).
  • Immediate management: NBM immediately. IV access, analgesia (IV opioids). Bloods — FBC, CRP, U&E. Urine MC&S. URGENT urology referral — aim for theatre within 6 hours from onset. Do NOT request Doppler USS if clinical diagnosis of torsion — it delays surgery. Consent for exploration ± orchidopexy (fixing both testes) ± orchiectomy if non-viable. Explain to patient and parents.

⚠️ Examiner Instructions — Not for Candidate

Feed these findings: Right testis high-riding, horizontal lie, diffusely tender, erythematous scrotum. Cannot identify posterior epididymis separately. Cremasteric reflex: ABSENT right. Transillumination: negative. Left testis: normal position and tenderness, horizontal lie noted (Bell clapper bilateral). Prehn's sign: if candidate performs — pain not relieved. If candidate requests Doppler USS before surgical referral: "Theatre is available now — will you wait for Doppler USS first?"

🔔 Examiner Cues ▼
  • If candidate waits for Doppler USS: "It's now 30 minutes since you requested Doppler — USS department is busy. SpO₂ is fine but Liam is in severe pain. What do you do?"
  • If candidate relies on Prehn's sign to exclude torsion: "What is the sensitivity and specificity of Prehn's sign for excluding torsion?"
  • If candidate doesn't examine the contralateral testis: "Is there anything about the other side that's relevant to future risk?"
  • At 7 minutes: "Liam is 16 — who needs to be involved in consent for emergency surgery?"
CriterionMarks
Inspection
Inspection — high-riding testis and horizontal lie identified; erythema, swelling noted2
Palpation
Diffuse testicular tenderness identified; loss of posterior groove; distinguishes from posterior epididymal-only tenderness of epididymo-orchitis2
Cremasteric reflex absent — correctly elicited and identified as significant positive finding for torsion2
Transillumination negative; contralateral testis examined — Bell clapper deformity bilateral noted1
Prehn's sign — candidate knows the test, explicitly states it is unreliable and must NOT be used to exclude torsion2
Diagnosis and Safety
Testicular torsion diagnosed as working diagnosis — states surgical emergency2
Does NOT request Doppler USS before surgical referral — delay risks testis2
6-hour salvage window stated — current 3-hour history = urgent1
Management and Communication
NBM, IV access, analgesia, urology called urgently for emergency exploration2
Consent — patient (16, Gillick competent) and parents involved; exploration ± bilateral orchidopexy ± orchiectomy explained2
Total20
🔧 Practical Procedures
🔧
AED and Defibrillation — Witnessed Cardiac Arrest
Procedure · 8 minStation 5 of 10
8:00
Station type
Practical Procedure
Time allowed
8 minutes
Pass mark
12 / 20
📄 Candidate Briefing
👁 Examiner Instructions
✅ Mark Scheme

📄 Candidate Instructions

You are walking through the ED waiting room when a 56-year-old man collapses in front of you. He was waiting to be seen for chest pain. He is now on the floor and unresponsive. An AED is mounted on the wall 3 metres away. A nurse and a healthcare assistant are nearby.

Please manage this witnessed cardiac arrest, demonstrate BLS and correct AED use on the manikin, and verbalise all your actions. The examiner will play the roles of the nurse and healthcare assistant.

💡 BLS, AED Use and ALS Transition ▼
  • BLS sequence (Resuscitation Council UK 2021):
    1. Safe — check scene for danger before approaching.
    2. Stimulate — shout "Are you alright?" and gently shake shoulders.
    3. Shout for help — "Call the crash team / call 999 and get the AED."
    4. Airway — head tilt / chin lift (or jaw thrust if trauma). Check for breathing (look, listen, feel — no more than 10 seconds). Agonal gasps = not normal breathing = treat as arrest.
    5. Call — one person calls crash team (or 999), another retrieves AED. Start CPR simultaneously — do not wait.
    6. CPR — heel of hand, centre of chest. Rate 100–120/min. Depth 5–6cm (not more — rib fracture risk increases without benefit). Full chest recoil between compressions. Ratio 30:2. Minimise interruptions — pause <5 seconds for ventilations. Allow for ventilations with bag-valve-mask once airway secured.
  • AED use — step by step:
    1. Switch on — press button or lift lid.
    2. Attach pads — right clavicle pad: below right clavicle, right of sternum. Left axilla pad: mid-axillary line, 5th–6th intercostal space (level with the V6 ECG lead position).
    3. Before attaching pads — check for: implanted pacemaker or ICD (pads ≥8cm from device, preferably use anterior-posterior placement). Medication patches (remove and wipe before pad placement). Wet chest (dry with towel). Shave excessive chest hair if gel contact poor (some AEDs have a razor).
    4. Stand clear for analysis — announce "Stand clear" and visually confirm no contact. Do NOT touch the patient.
    5. Shock advised — announce "Stand clear, shocking" + visual sweep of team — then press shock button.
    6. Immediately resume CPR — do NOT check pulse post-shock. CPR for 2 minutes. AED re-analyses.
    7. Continue until: ROSC (patient breathing normally, moving, regaining consciousness). Crash team arrives and takes over. 30 minutes of resuscitation with no ROSC.
  • Shockable vs non-shockable: AED will differentiate automatically. Shockable rhythms: VF (ventricular fibrillation) and pulseless VT (pVT) — defibrillation + CPR. Non-shockable: PEA (pulseless electrical activity) and asystole — CPR + treat reversible causes (4Hs and 4Ts). AED will say "No shock advised" for non-shockable rhythms — immediately resume CPR.
  • 4Hs and 4Ts (reversible causes of cardiac arrest): Hypoxia, Hypovolaemia, Hypo/hyperkalaemia and metabolic, Hypothermia. Tension pneumothorax, Tamponade (cardiac), Toxins, Thrombosis (PE or coronary).
  • Transition to ALS when crash team arrives: Brief handover — mechanism, duration of arrest, number of shocks given, ROSC achieved or not. Team leader assumes control. Advanced airway — supraglottic (LMA) or tracheal intubation. Rhythm-guided drugs: adrenaline 1mg IV every 3–5 minutes for non-shockable/shockable. Amiodarone 300mg after 3rd shock for VF/pVT.
  • Special situations: Water/wet patient — do not apply AED in water, move to dry surface first. Pregnancy — same pad placement (do not change for pregnancy). Children >8 years / >25kg — standard adult AED. Children 1–8 years — paediatric pads/attenuator if available; otherwise use adult pads (don't let this delay defibrillation). Infants <1 year — manual defibrillation preferred.

⚠️ Examiner Instructions — Not for Candidate

Manikin on the floor. AED available. Initial rhythm: VF (shockable). After first shock + 2 minutes CPR: AED advises second shock — patient still in VF. After second shock + 2 minutes CPR: crash team arrives. The nurse (examiner) will say "I've called the crash team — what do you want me to do?" Assign her to start CPR if candidate is solo. Check key safety moments: does candidate check for pacemaker/patches before pad placement? Do they stand clear and do a visual sweep before shocking? Do they restart CPR immediately after shock without pulse check?

🔔 Examiner Cues ▼
  • If candidate stops to check pulse after shock: "Why are you stopping CPR? What does the evidence say about immediate post-shock pulse checks?"
  • If candidate doesn't do visual sweep before shock: "One of the healthcare assistants is still touching the patient's leg — have you ensured everyone is clear?"
  • If AED says "No shock advised": "The AED is now saying no shock advised — what is the rhythm likely to be and how does your management change?"
  • When crash team arrives: "The ALS team is here — how do you hand over?"
CriterionMarks
BLS Initiation
Scene safety checked; patient stimulated (shout + shake); unresponsive confirmed1
Help called — crash team activated, AED retrieved simultaneously; CPR started without delay2
Airway opened — head tilt/chin lift; no breathing confirmed ≤10 seconds (agonal gasps recognised as arrest)1
CPR Quality
CPR rate 100–120/min, depth 5–6cm, full recoil, 30:2 ratio2
Interruptions minimised — pauses <5 seconds; does not stop for pulse check post-shock2
AED Use
Pads correctly placed — right clavicle and left axilla; checks for pacemaker, patches, wet chest before application2
Stand clear for analysis — visual sweep of team performed; shock delivered safely2
CPR resumed immediately post-shock — no pulse check2
Knowledge
Shockable (VF/pVT) vs non-shockable (PEA/asystole) — correct management for each arm described2
ALS transition — handover, 4Hs and 4Ts, adrenaline timing, amiodarone after 3rd shock2
Total20
🔧
Failed Intubation Drill — DAS 2015 Algorithm
Procedure · 8 minStation 6 of 10
8:00
Station type
Practical Procedure
Time allowed
8 minutes
Pass mark
12 / 20
📄 Candidate Briefing
👁 Examiner Instructions
✅ Mark Scheme

📄 Candidate Instructions

You are the ED consultant managing a 35-year-old male trauma patient requiring emergency RSI for a GCS of 7 following a road traffic collision. RSI drugs have been given. Your first direct laryngoscopy attempt reveals a Cormack-Lehane grade 3 view. SpO₂ is falling — now 86%.

Obs: SpO₂ 86% and falling, HR 118, BP 96/58. Patient is paralysed and apnoeic. A videolaryngoscope, LMA, and surgical airway kit are available.

Please manage this failed intubation scenario following the DAS 2015 difficult airway guidelines. Verbalise every decision. The examiner will act as your assistant. You have 8 minutes.

💡 DAS 2015 Failed Intubation — Four-Plan Algorithm ▼
  • DAS (Difficult Airway Society) 2015 Guidelines — the four-plan framework: Named guidelines — candidates must know this name. Applies to RSI in any setting. The principle at every stage: oxygenation takes priority over intubation. Call for help early — do not wait until crisis.
  • Plan A — tracheal intubation with RSI: Maximum 3 laryngoscopy attempts + 1 final rescue attempt = 4 attempts total. After 3 failed direct laryngoscopy attempts, change something — different laryngoscope (videolaryngoscope), different blade size, bougie, external laryngeal manipulation, BURP manoeuvre, change head position, change operator. If best attempt with VL and bougie fails — declare failed intubation. Move to Plan B without further attempts.
  • Plan B — maintain oxygenation, declare failed intubation: Insert supraglottic airway device (SAD) — second-generation SGA preferred (i-gel, ProSeal LMA, Supreme LMA — all have gastric drainage channel and better seal than classic LMA). Declare out loud: "I am declaring a failed intubation. We are moving to Plan B." Oxygenate via SGA. If SpO₂ recovers and patient can be maintained — consider waking patient (if non-emergency), or proceeding to definitive airway via fibreoptic bronchoscope through SGA. A maximum of 3 SGA insertion attempts.
  • Plan C — face mask oxygenation: If SGA fails — revert to face mask ventilation. Two-person technique: one person holds mask with two hands using jaw thrust, one person squeezes bag. Use OPA and NPA adjuncts. Reduce or reverse anaesthetic and muscle relaxant if possible. Oxygenate fully. Can patient be woken safely? If ROSC and stabilised — consider awake fibreoptic intubation or surgical tracheostomy as planned procedure. If cannot oxygenate adequately — proceed to Plan D.
  • Plan D — "Cannot Intubate, Cannot Oxygenate" (CICO) — front of neck airway: Scalpel-finger-bougie cricothyroidotomy (same as Bank 8 Station 5). This is the rescue technique. Declare CICO. Do not hesitate. Speed is critical. Needle cricothyroidotomy as temporising measure only. Confirm with waveform capnography. Surgical referral for definitive tracheostomy subsequently.
  • Key principles throughout: (1) Call for help at the start — do not wait for crisis. (2) Limit total laryngoscopy attempts — more attempts → more trauma, more oedema, more bleeding, harder airway. (3) Declare clearly at each plan change — say the words: "Plan A has failed, we are moving to Plan B." (4) Oxygenation always takes priority. (5) Wake patient if possible and safe — do not proceed to further attempts on a paralysed patient who cannot be ventilated. (6) Capnography confirmation at every stage.
  • Awake fibreoptic intubation (AFOI): For anticipated difficult airway — do the awake technique first before drugs. The DAS guidelines also include an anticipated difficult airway pathway. AFOI under topical anaesthesia and light sedation is the gold standard for known difficult airway.
  • Documentation: Document each attempt, grade of view, technique used, devices used, complications. Patient and GP must be informed. Patient should receive a difficult airway alert card.

⚠️ Examiner Instructions — Not for Candidate

Feed real-time SpO₂ to create pressure. After candidate's Plan A 2nd attempt fails: "SpO₂ now 80%, dropping fast." After Plan B attempt (SGA): "i-gel inserted — SpO₂ recovering to 94%." If candidate tries more than 3+1 attempts at laryngoscopy: "Your 4th attempt — is that within the DAS guidelines?" If candidate moves directly to surgical airway without Plan B/C: "What does the DAS algorithm say about the order of plans?"

🔔 Examiner Cues ▼
  • If candidate doesn't declare "failed intubation" out loud: "Is there something specific you should verbalise to the team at this point?"
  • If Plan B (SGA) succeeds — SpO₂ recovers: "The i-gel is in, SpO₂ is 95%. Can you now intubate through it? What are your options?"
  • If candidate reaches Plan D: "Walk me through your cricothyroidotomy technique step by step."
  • At 7 minutes: "What must you do after this event in terms of documentation and patient safety?"
CriterionMarks
Plan A
Failed intubation declared verbally after maximum 3 + 1 rescue attempts — no further laryngoscopy2
Help called early — at Plan A failure, not at Plan D crisis1
Optimisation attempted between attempts — VL, bougie, different blade, BURP, head position change2
Plans B and C
Plan B declared — second-generation SGA inserted (i-gel/ProSeal), SpO₂ recovery prioritised2
Plan C — face mask, 2-person technique, OPA/NPA adjuncts if SGA fails2
Considers waking patient — explicitly states "wake if possible unless CICO"2
Plan D and Algorithm
Plan D correctly described — CICO → scalpel-finger-bougie cricothyroidotomy; DAS 2015 algorithm named2
Oxygenation prioritised over intubation stated at every decision point2
Communication and Documentation
Clear verbal declarations at each plan transition — team informed2
Waveform capnography for confirmation at each successful airway placement1
Post-event documentation, difficult airway alert card for patient, GP letter stated2
Total20
💬 Communication
💬
DNACPR Discussion — Family Disagreement
Communication · 8 minStation 7 of 10
8:00
Station type
Communication
Time allowed
8 minutes
Pass mark
12 / 20
📄 Candidate Briefing
👁 Examiner Instructions
✅ Mark Scheme

📄 Candidate Instructions

You are the ED registrar. Mr Ernest Shaw, 84 years old, has been admitted with an acute exacerbation of his severe COPD — his fourth admission in six months. He has significant comorbidities: ischaemic heart disease, type 2 DM, moderate dementia, and NYHA class III heart failure. During this admission, Mr Shaw, who has capacity for this decision, agreed to a DNACPR order being completed with him. This is documented in his notes.

His son, Mr David Shaw, has just arrived. He is visibly upset and is demanding the DNACPR form be removed. He says: "You're giving up on my father. Remove that form right now. If his heart stops, I want everything done."

Please speak with Mr David Shaw. You have 8 minutes.

💡 DNACPR — Legal Framework, Communication Approach ▼
  • What DNACPR means — and does not mean: DNACPR (Do Not Attempt Cardiopulmonary Resuscitation) is a specific clinical decision NOT to perform CPR in the event of cardiorespiratory arrest. It does NOT mean: withdrawing other treatments (IV antibiotics, fluids, oxygen, analgesia continue). It does NOT mean abandoning the patient. It does NOT mean a decision to end life. Families commonly misunderstand this — this must be explained clearly and compassionately.
  • DNACPR is a medical decision: Under UK law and GMC guidance, CPR decisions are made by the clinical team. A family member or next-of-kin cannot demand CPR be attempted — nor can they demand DNACPR be removed. If the patient has capacity (as Mr Shaw does here), the patient's own view takes precedence. Mr Shaw agreed to the DNACPR — his autonomous decision must be respected. The son's distress is understandable and must be acknowledged, but he does not have legal authority to override a capacitous patient's decision or the clinical team's medical judgement.
  • Futility of CPR in context: In a patient with severe COPD, ischaemic heart disease, heart failure, and multiple hospital admissions, CPR has an extremely low likelihood of achieving ROSC, and a lower likelihood still of achieving meaningful recovery/hospital discharge. CPR involves chest compressions (rib fractures common in elderly), defibrillation, and possible intubation/ICU admission. The process itself causes significant harm. Explaining this factually and honestly — without being brutal — is essential. "Even if his heart were restarted, the damage from CPR itself and from the underlying condition means the likelihood of him surviving to leave hospital is very small. More likely, it would cause him distress and injury in his final moments."
  • Exploring the son's concerns: Ask what he is worried about. Often the concern is: "Are you just going to let him die?" — this allows you to explain all the active treatment that is continuing. Or the concern is: "I don't want to feel responsible" — normalise and support. Listen before you explain.
  • What continues: Full active medical treatment for the COPD exacerbation — nebulisers, steroids, antibiotics, NIV if appropriate and wanted by patient. Comfort and symptom management. Full nursing care. Regular reviews. The DNACPR is only relevant if he arrests.
  • Escalation and support: Offer to involve the consultant and the palliative care team. Chaplaincy services. Social worker. A follow-up family meeting with more time. Do NOT simply remove the DNACPR to "keep the peace" — this would be clinically inappropriate and potentially harmful to the patient.
  • What if Mr Shaw lacked capacity? Then the clinical team would make a best interests decision in consultation with family (but family do not make the decision). An IMCA (Independent Mental Capacity Advocate) may be appropriate if no family or if family in conflict. A Lasting Power of Attorney (Health and Welfare — must be activated) would be relevant if it existed.
  • Approach: Welcome the son. Thank him for coming. Sit down. Acknowledge his love for his father and his distress. Do not be defensive. Ask: "Can I ask what worries you most?" Listen. Then explain clearly, using plain language. Do not use jargon ("DNACPR" may need explaining as "a decision about resuscitation").

⚠️ Examiner / Role-player Instructions — Not for Candidate

You are Mr David Shaw. You are genuinely distressed — not aggressive for no reason. You feel helpless and afraid your father is going to die tonight. You have driven 3 hours to get here. You soften if the candidate sits down, acknowledges your feelings, and listens before explaining. You harden if the candidate is dismissive, clinical, or seems rushed. Key lines: "He's not ready to die. He's still got life in him." / "You don't know him like I do." / "If you don't try, I'll make a complaint." Soften completely if candidate explains DNACPR ≠ withdrawal of treatment, and that the patient himself agreed.

🎭 Family Script ▼
  • Opening: "That form says you won't try to save him. I want it removed. He's my father."
  • If candidate explains DNACPR ≠ withdrawal: Slightly calmer — "So you'll still give him the nebulisers and the antibiotics?" — confirms this distinction matters to him.
  • If candidate explains patient agreed: Conflicted — "He didn't tell me... did he really understand what he was agreeing to?"
  • If candidate explains CPR futility gently: Tearful — "I just don't want him to suffer. I don't want to feel like I didn't do enough."
  • If candidate is dismissive or rigid: "I want to speak to someone more senior. I'll call my solicitor."
  • If palliative care offered: "I didn't realise there was a team like that. Could they talk to me more about what to expect?"
🔔 Examiner Cues ▼
  • If candidate removes DNACPR under pressure: "Is that clinically appropriate? What are the implications?"
  • If candidate is defensive or lectures son: "Mr Shaw is becoming more distressed — how can you re-establish connection?"
  • At 7 minutes: "Mr Shaw asks: 'What happens if his heart stops tonight — what will you actually do?' — how do you respond?"
CriterionMarks
Approach and Rapport
Welcomes son, sits down, acknowledges his distress empathically before explaining — listens first2
Explores son's concerns — asks "What are you most worried about?" rather than immediately defending the decision2
Explaining DNACPR
DNACPR is a medical decision — not overridable by family; son cannot demand CPR2
DNACPR does NOT mean withdrawal of all treatment — clearly explains what continues (antibiotics, nebulisers, fluids, symptom control)2
CPR futility and harm explained in plain language — low chance of ROSC, rib fractures, no meaningful recovery likely2
Explains patient has capacity and agreed to DNACPR — his autonomous decision must be respected2
Management of Conflict
Does NOT remove DNACPR under family pressure — maintains position calmly2
Non-defensive, non-aggressive throughout — does not become dismissive or lecture son2
Support and Escalation
Palliative care team and chaplaincy offered; consultant involvement offered if conflict unresolved2
Documents conversation; offers follow-up family meeting with more time2
Total20
💬
SBAR Handover to ITU Registrar — Severe Sepsis
Communication · 8 minStation 8 of 10
8:00
Station type
Communication
Time allowed
8 minutes
Pass mark
12 / 20
📄 Candidate Briefing
👁 Examiner Instructions
✅ Mark Scheme

📄 Candidate Instructions

You are the ED registrar. Mrs Priya Nair, 58 years old, was admitted 2 hours ago with severe community-acquired pneumonia. Despite your management — 3L IV fluid, IV co-amoxiclav and clarithromycin, 15L O₂ via non-rebreathe mask — she is deteriorating.

Current obs: HR 128, BP 82/44 (MAP 57), RR 34, SpO₂ 87% on 15L O₂, GCS 13 (E3V4M6), Temp 39.2°C. Lactate 4.8 mmol/L. CXR — bilateral consolidation. NEWS score 18. Vasopressors not yet started.

You are calling the ITU registrar to request urgent review and ITU admission. The examiner will play the ITU registrar. Please give a structured SBAR handover. You have 8 minutes.

💡 SBAR Framework and Sepsis Escalation ▼
  • SBAR (Situation, Background, Assessment, Recommendation) — structured handover tool: Designed to reduce communication errors during patient handovers. Used by Resuscitation Council UK, NHS SBAR tool, and recommended in all escalation scenarios. Each element has a specific purpose.
  • S — Situation: Who you are, where you are, the patient's name and age, why you're calling. One or two sentences maximum. "This is Dr [X], ED registrar at [Hospital]. I'm calling about Mrs Priya Nair, 58 years old, who is deteriorating rapidly with severe sepsis secondary to pneumonia and I'm requesting urgent ITU review."
  • B — Background: Relevant medical history, admission story, key investigations. PMH — relevant comorbidities (e.g. DM, immunosuppression). Admission 2 hours ago. Presenting with features of pneumonia. CXR: bilateral consolidation. Bloods: WCC 22, CRP 340, lactate 4.8. Started appropriate antibiotics 1 hour ago (document the time — antibiotic timing matters in sepsis). 3L IV fluid given. Current medications relevant to ITU (anticoagulants, immunosuppressants).
  • A — Assessment: Your clinical diagnosis and trajectory. Current observations including NEWS score (18 here). Diagnosis: severe sepsis with septic shock (MAP <65 despite fluid). Trajectory: deteriorating despite initial management. SpO₂ 87% on 15L O₂ = impending respiratory failure. The patient is likely to require intubation and vasopressors.
  • R — Recommendation: What you are asking for specifically. "I am requesting urgent ITU review with a view to admission. I anticipate she will need vasopressor support (noradrenaline), and is likely to require intubation for respiratory failure. She will need central venous access and an arterial line. I would like you to come now." Be specific — don't just say "can you come and have a look." State urgency clearly.
  • Sepsis bundle — what should already be done by time of ITU call (Surviving Sepsis Campaign / NICE NG51): Within 1 hour — blood cultures ×2 before antibiotics, IV antibiotics, IV fluid 500ml crystalloid bolus (reassess after each), lactate measured, hourly urine output monitoring. Vasopressors (noradrenaline) if MAP <65 despite fluid — can be started peripherally in emergency, central access to follow. Antibiotic timing: within 1 hour of recognition in septic shock (this patient — IV antibiotics 1 hour ago — good). Lactate 4.8 = >4 = high risk — indicates tissue hypoperfusion.
  • Family awareness: Has the family been informed of severity? Is there a next of kin aware? This is often missed. ITU registrar will ask this. If family not yet informed — this should happen urgently, before intubation if possible.
  • What NOT to do in SBAR: Reading from notes without eye contact (in face-to-face SBAR). Being vague ("she's not doing well"). Not stating what you need clearly. Being overly apologetic ("sorry to bother you"). Taking too long on background at the expense of assessment and recommendation.

⚠️ Examiner / Role-player Instructions — Not for Candidate

You are the ITU registrar. You are busy but not hostile. After the handover, ask these three challenge questions: (1) "What was her lactate?" (Expected: 4.8 mmol/L — if candidate didn't include it, they should know it). (2) "When did antibiotics go in?" (Expected: within 1 hour of presentation — candidate should know exact time). (3) "Is the family aware of how serious this is?" (Expected: yes/no — candidate should state what has or hasn't been communicated to family). If the handover is structured and clear, say: "I'll be there in 3 minutes." If it's disorganised, ask: "Can you start again using SBAR — Situation, Background, Assessment, Recommendation?"

🔔 Examiner Cues ▼
  • If candidate gives an unstructured handover: "I'm going to stop you — can you use the SBAR format? Start with Situation."
  • If candidate doesn't state Recommendation clearly: "So what exactly are you asking me to do — and how urgently?"
  • If candidate doesn't mention vasopressors or intubation anticipation: "What do you think she's going to need from ITU specifically?"
  • If candidate answers all three challenge questions correctly: "Good — I'll be there in 3 minutes. Start getting central access ready."
CriterionMarks
Situation
Self-introduction, patient name/age, location, reason for call stated concisely in opening2
Background
Admission story, relevant PMH, CXR findings, key bloods, antibiotic timing stated2
Assessment
Current observations stated — HR, BP, MAP, SpO₂, RR, GCS, Temp, NEWS 182
Diagnosis stated — severe sepsis / septic shock (MAP <65 despite fluid); trajectory — deteriorating2
Recommendation
Specific recommendation — urgent ITU review and admission; vasopressors, intubation, central access, arterial line anticipated2
States urgency clearly — "I need you to come now"1
Challenge Questions
Lactate 4.8 mmol/L stated correctly when challenged2
Antibiotic timing answered correctly — within 1 hour of presentation2
Family awareness addressed — states whether family has been informed and if not, that this should happen urgently2
Delivery
Structured, confident, concise — not reading verbatim; uses SBAR framework correctly1
Total20
📊 Data Interpretation
📊
Blood Film Interpretation — Sickle Cell Crisis and Malaria
Data · 8 minStation 9 of 10
8:00
Station type
Data Interpretation
Time allowed
8 minutes
Pass mark
12 / 20
📄 Candidate Briefing
👁 Examiner Instructions
✅ Mark Scheme

📄 Candidate Instructions

This is a two-part data interpretation station. The examiner will describe two blood film findings from two different patients. For each, state your diagnosis, the key film findings, and your immediate management.

Part 1: A 28-year-old Afro-Caribbean man presents with severe bilateral leg and lower back pain and increasing breathlessness. He is known to have sickle cell disease. Hb 68 g/L, WBC 18, platelets 420.

Part 2: A 32-year-old woman returns from 3 weeks in West Africa with a 5-day history of fever, rigors and headache. Hb 94, WBC 6, platelets 72. Parasitaemia 4%.

The examiner will describe the blood film for each. You have 8 minutes total for both parts.

💡 Sickle Cell Blood Film and Acute Chest Syndrome ▼
  • Sickle cell blood film features: Sickle cells (drepanocytes) — elongated, crescent-shaped RBCs with pointed ends. Target cells (codocytes) — central density surrounded by pale ring and outer ring — seen in haemoglobinopathies, liver disease, post-splenectomy. Howell-Jolly bodies — small dark nuclear remnants in RBCs — indicates hyposplenism or asplenia (sickle cell patients undergo autosplenectomy by early adulthood due to repeated splenic infarction). Reticulocytes — elevated (compensatory haematopoiesis). Anisocytosis and poikilocytosis.
  • Acute chest syndrome (ACS): New infiltrate on CXR + chest symptoms (chest pain, cough, fever, hypoxia) in a patient with sickle cell disease. ACS is the leading cause of death in sickle cell disease in adults. Mechanism: sickling in pulmonary vasculature, fat embolism from infarcted bone marrow, infection (pneumonia — atypicals common). Symptoms: chest pain, dyspnoea, falling SpO₂. Management: O₂ to maintain SpO₂ >95%. IV fluids carefully (not aggressive — pulmonary oedema risk). Analgesia (sickle pain crises often coexist — IV opioid PCA). Exchange transfusion — indicated when SpO₂ <95% on O₂, rising respiratory distress, rapid deterioration — reduces HbS% to <30%. Simple transfusion if less severe (increases Hb but does not reduce HbS%). IV antibiotics — co-amoxiclav + azithromycin (atypicals). Haematology referral urgently. Incentive spirometry.
  • Other sickle cell emergencies: Vaso-occlusive crisis (pain crisis) — bone, joint, abdominal pain. Splenic sequestration (children) — acute splenomegaly, anaemia. Aplastic crisis — parvovirus B19 infects erythroid precursors. Stroke — ischaemic (children) or haemorrhagic. Priapism — stuttering vs major (>4h = emergency, exchange transfusion ± surgical intervention).
  • Infection risk in functional asplenia: Encapsulated organisms — Streptococcus pneumoniae (most common), Haemophilus influenzae, Neisseria meningitidis. These patients should be on lifelong penicillin prophylaxis and be vaccinated against pneumococcus, Hib, meningococcus, annual flu. Any fever in a sickle cell patient with functional asplenia = sepsis until proven otherwise — immediate blood cultures and IV antibiotics.
💡 Malaria Blood Film — Plasmodium falciparum ▼
  • Malaria blood film features — thick and thin films: Thick film: higher sensitivity, used for detection. Thin film: allows speciation. Plasmodium falciparum features: small ring forms (trophozoites) with double chromatin dots; multiple rings per RBC; appliqué (Maurer's clefts) forms at periphery of RBC; no enlarged RBCs; banana-shaped gametocytes (pathognomonic — seen in P. falciparum only). P. vivax: enlarged RBCs, amoeboid trophozoites, Schüffner's dots. P. malariae: band trophozoites. P. ovale: oval RBCs, Schüffner's dots.
  • Parasitaemia 4% — significance: >2% parasitaemia = threshold for exchange transfusion consideration in some guidelines. >5% = severe malaria by WHO criteria (though any P. falciparum can be severe). 4% in this patient with thrombocytopenia (platelets 72) and likely evolving organ dysfunction = severe malaria.
  • WHO criteria for severe P. falciparum malaria: Impaired consciousness (any GCS <15). Prostration (generalised weakness — cannot sit/stand). Multiple convulsions (>2 in 24h). Respiratory distress. Abnormal bleeding. Jaundice. Haemoglobinuria ("blackwater fever"). Severe anaemia (Hb <70). Hypoglycaemia (<2.2 mmol/L). Pulmonary oedema. Shock. Renal impairment (creatinine >265 μmol/L). Hyperparasitaemia (>5% in non-immune traveller, or >10% in partial-immune).
  • Treatment — IV artesunate (first-line in UK since 2012): IV artesunate is the treatment of choice for severe malaria in the UK and worldwide (WHO). Dose: 2.4 mg/kg IV at 0, 12, 24 hours then every 24 hours until oral possible. Available from imported medicines pharmacy or PHE (Public Health England) 24-hour malaria reference laboratory (07831 257 179). IV quinine used to be first-line — now second-line (QTc prolongation, quinine toxicity). If artesunate genuinely unavailable, use quinine + doxycycline.
  • Notifiable disease: Malaria is a statutory notifiable disease in England and Wales under the Health Protection (Notification) Regulations 2010. Must be reported to the local Health Protection Team. Also notify PHE Malaria Reference Laboratory.
  • Barrier nursing: Standard precautions. Malaria is NOT transmitted person-to-person, but barrier nursing is appropriate for bloodborne precautions. Vector control not required in UK (no endemic Anopheles mosquito).
  • Other management: IV access, glucose monitoring (hypoglycaemia common), fluid management, treat complications (AKI, ARDS, severe anaemia — transfuse if Hb <70). Exchange transfusion for hyperparasitaemia >10% or rapid deterioration (controversial — no RCT evidence, less commonly done since artesunate became available). Haematology/ID team, ITU review if severe criteria met.

⚠️ Examiner Instructions — Not for Candidate

Part 1 — read aloud: "Blood film shows sickle cells, target cells, and Howell-Jolly bodies. Reticulocytes elevated." Then ask: "He is now SpO₂ 88% on air with new bilateral crackles — what complication do you suspect and when would you exchange transfuse?" Part 2 — read aloud: "Thin film shows small ring-form trophozoites with double chromatin dots, some appliqué forms, multiple rings within single RBCs, and banana-shaped gametocytes." Then ask: "What is the treatment, and is this a notifiable disease?"

🔔 Examiner Cues ▼
  • If candidate says "quinine" for malaria treatment: "Is quinine still first-line in the UK for severe malaria? What replaced it?"
  • If candidate doesn't identify Howell-Jolly bodies: "What do Howell-Jolly bodies indicate, and what infection risk does this patient have as a result?"
  • If candidate doesn't mention exchange transfusion threshold: "At what SpO₂ or in what clinical context would you exchange transfuse in sickle cell ACS?"
  • If candidate doesn't mention notifiable disease: "Is malaria reportable, and to whom?"
CriterionMarks
Part 1 — Sickle Cell Film
Sickle cells, target cells, and Howell-Jolly bodies all correctly identified2
Howell-Jolly bodies explained — functional asplenia; encapsulated organism infection risk stated2
Acute chest syndrome suspected from SpO₂ 88% + bilateral crackles — mechanism explained2
ACS management: O₂, analgesia, IV antibiotics (co-amoxiclav + azithromycin), haematology, careful fluids2
Exchange transfusion indication — SpO₂ <95% on O₂ or rapid deterioration; target HbS <30%2
Part 2 — Malaria Film
Ring-form trophozoites, double chromatin dots, appliqué forms, banana-shaped gametocytes identified — P. falciparum confirmed2
Parasitaemia 4% + thrombocytopenia + clinical picture — severe malaria criteria assessed2
IV artesunate named as first-line treatment in UK — quinine correctly identified as second-line only2
Malaria declared as statutory notifiable disease — PHE / local HPT notification stated2
Supportive management — glucose monitoring, haematology/ID referral, ITU if severe criteria2
Total20
📊
FAST Scan Interpretation — Blunt Abdominal Trauma
Data · 8 minStation 10 of 10
8:00
Station type
Data Interpretation
Time allowed
8 minutes
Pass mark
12 / 20
📄 Candidate Briefing
👁 Examiner Instructions
✅ Mark Scheme

📄 Candidate Instructions

You are the trauma team leader. Mr Callum Fraser, 35 years old, arrives by ambulance following a high-speed motorcycle collision. He was wearing a helmet but has significant abdominal bruising from the handlebars. GCS 14.

Primary survey: Airway patent. RR 28, bilateral air entry. HR 132, BP 84/50, Cap refill 4 seconds. GCS 14 (E3V5M6), pupils equal and reactive. Temp 35.8°C.

A FAST scan has been performed. The examiner will describe each window in sequence. Please interpret the findings, state your diagnosis, and give your immediate management. You have 8 minutes.

💡 FAST Scan Windows, Haemoperitoneum and Damage Control ▼
  • FAST scan — 4 standard windows: (1) Morrison's pouch (hepatorenal) — right upper quadrant, between right lobe of liver and right kidney. (2) Splenorenal recess — left upper quadrant, between spleen and left kidney. (3) Pericardial (subxiphoid) — inferior aspect of heart, between liver and heart. (4) Pelvic (pouch of Douglas / retrovesical) — bladder and posterior pelvis. An anechoic (black/dark) stripe in any window = free fluid = blood in trauma context = haemoperitoneum.
  • eFAST (extended FAST): Adds bilateral thoracic windows (2nd ICS, mid-clavicular line) for pneumothorax (absent lung sliding) and haemothorax (anechoic stripe above diaphragm).
  • Interpretation of findings: This patient — Morrison's pouch: positive (large anechoic stripe). Splenorenal: positive. Pericardial: negative (no tamponade). Pelvic: positive. Three of four abdominal windows positive = significant haemoperitoneum.
  • Clinical decision — haemodynamically unstable + positive FAST: ATLS principle: haemodynamically unstable patient with positive FAST = immediate operative intervention (emergency laparotomy). Do NOT proceed to CT scan — the delay can be fatal in an actively bleeding patient. CT is for haemodynamically stable patients to define anatomy before surgery. Rule: "Unstable goes to theatre, stable goes to scanner."
  • Major haemorrhage protocol (MHP): Activate immediately. MHP provides: packed RBCs, fresh frozen plasma (FFP), platelets in a ratio of 1:1:1 (or 2:1:1 — RBC:FFP:PLT). Cryoprecipitate for fibrinogen replacement (<1.5 g/L). Target: fibrinogen >1.5–2.0, platelets >50 ×10⁹, PT/APTT <1.5× normal. Avoid hypothermia, acidosis, coagulopathy — the "lethal triad." Tranexamic acid (TXA) within 3 hours of injury — 1g IV over 10 minutes then 1g over 8 hours (CRASH-2 trial evidence).
  • Permissive hypotension (hypotensive resuscitation): In haemorrhagic shock, aggressive crystalloid resuscitation dilutes clotting factors, worsens hypothermia, and increases bleeding. Target: systolic BP 80–90 mmHg for penetrating trauma; 90–100 mmHg for blunt trauma until haemostasis achieved. Do not use vasopressors as substitute for volume in haemorrhagic shock. This is not the same as "no fluid" — it is "controlled resuscitation until surgical haemostasis."
  • Trauma team roles and communication: Team leader coordinates — does not have hands on patient. Airway doctor. Procedures doctor (IV access, bloods, urinary catheter, thoracostomy if needed). Scribe. Radiographer for CXR/pelvis XR. Trauma surgeon called immediately for positive FAST in unstable patient. Anaesthetist for RSI if needed. Clear, closed-loop communication.
  • Damage control surgery (DCS): Not definitive surgery — haemorrhage control first (pack, clamp, ligate), temporary closure, patient to ITU for warming/correction of coagulopathy, then planned return to theatre for definitive repair 24–48 hours later. For this patient — likely grade 3+ liver or splenic laceration, possible mesenteric injury.
  • When FAST is negative but suspicion remains: A negative FAST does NOT exclude solid organ injury in a haemodynamically stable patient. FAST has sensitivity ~79% for haemoperitoneum. Stable patient with high mechanism and abdominal pain → CT abdomen with IV contrast regardless of FAST result.

⚠️ Examiner Instructions — Not for Candidate

Describe FAST findings window by window: (1) "Morrison's pouch — I can see a large anechoic stripe between the liver and right kidney." (2) "Splenorenal — anechoic stripe present on the left." (3) "Pericardial window — no pericardial effusion, heart contracting well." (4) "Pelvic — anechoic free fluid posterior to bladder." Then ask: (a) "He's now BP 78/44 — your SHO suggests taking him for CT — what do you say?" (b) "What blood product ratio are you requesting from the blood bank?" (c) "Is there a time limit for TXA?"

🔔 Examiner Cues ▼
  • If candidate sends unstable patient to CT: "He arrests in the CT scanner — was that the right decision?"
  • If candidate uses aggressive crystalloid rather than blood products: "What happens to the lethal triad with large-volume crystalloid resuscitation in haemorrhagic shock?"
  • If candidate doesn't mention permissive hypotension: "What blood pressure are you targeting before surgical haemostasis in blunt trauma?"
  • At 7 minutes: "The surgeon asks what you've given so far, what the FAST shows, and whether TXA has been given — give him a 30-second handover."
CriterionMarks
FAST Interpretation
Each of the 4 FAST windows correctly interpreted — Morrison's (positive), splenorenal (positive), pericardial (negative — no tamponade), pelvic (positive)4
Synthesis: 3 of 4 abdominal windows positive = significant haemoperitoneum correctly stated2
Clinical Decision
Haemodynamically unstable + positive FAST = immediate operative intervention — NOT CT scan2
ATLS principle stated — "unstable to theatre, stable to scanner"1
Trauma surgery called immediately for emergency laparotomy1
Damage Control Resuscitation
Major haemorrhage protocol activated — 1:1:1 RBC:FFP:platelets requested2
TXA given within 3 hours of injury — 1g IV loading dose stated2
Permissive hypotension — target SBP 90–100 mmHg blunt trauma until haemostasis2
Avoids aggressive crystalloid — states dilutional coagulopathy, lethal triad risk2
Concise 30-second surgeon handover — mechanism, FAST findings, interventions, TXA status2
Total20