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100+ Free MRCEM Intermediate SBA Practice Questions

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A 22-year-old man sustains a stab wound to the left chest and is hypotensive with distended neck veins and muffled heart sounds. FAST shows pericardial fluid. What is the most likely diagnosis?

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Sample MRCEM Intermediate SBA Practice Questions

Try these sample questions to test your MRCEM Intermediate SBA exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A 58-year-old man presents with central crushing chest pain for 40 minutes. His ECG shows 2 mm ST elevation in leads II, III and aVF. Which additional ECG leads should be recorded to assess for right ventricular involvement?
A.Posterior leads (V7-V9)
B.Repeat standard 12-lead in expiration
C.Modified limb leads (Lewis lead)
D.Right-sided chest leads (V3R-V4R)
Explanation: Inferior STEMI (II, III, aVF) is frequently caused by right coronary artery occlusion and may be associated with right ventricular (RV) infarction. Right-sided chest leads V3R-V4R should be recorded; ST elevation in V4R indicates RV infarction, which mandates caution with nitrates and the need for fluid loading rather than vasodilatation.
2A 24-year-old woman with known asthma presents with breathlessness. She is too breathless to complete sentences, her respiratory rate is 28/min, heart rate 120/min and peak flow is 40% of predicted. According to BTS/SIGN classification, how is this acute asthma attack best categorised?
A.Moderate
B.Acute severe
C.Life-threatening
D.Near-fatal
Explanation: Acute severe asthma is defined by any one of: PEF 33-50% best/predicted, respiratory rate >=25/min, heart rate >=110/min, or inability to complete sentences in one breath. This patient meets several of these criteria, placing her in the acute severe category, requiring high-flow oxygen, nebulised salbutamol and oral or IV steroids.
3A 70-year-old man with a known abdominal aortic aneurysm presents with sudden severe back pain and is hypotensive. He is haemodynamically borderline. What blood pressure target best describes the principle of permissive hypotension while awaiting surgery?
A.Maintain MAP above 90 mmHg with aggressive fluids
B.Aim for a systolic of around 90 mmHg / palpable radial pulse
C.Restore systolic to the patient's baseline of 140 mmHg
D.Avoid all fluids until in the operating theatre
Explanation: In suspected ruptured AAA, permissive (restricted-volume) resuscitation aims to maintain enough perfusion to preserve cerebral function while avoiding clot disruption and dilutional coagulopathy. A target around a palpable radial pulse / systolic of roughly 90 mmHg is widely used pending definitive surgical or endovascular repair.
4A 30-year-old woman presents with a unilateral painful red eye, photophobia and blurred vision. Examination shows ciliary flush and an irregular, small pupil. Slit-lamp examination reveals cells and flare in the anterior chamber. What is the most likely diagnosis?
A.Acute angle-closure glaucoma
B.Anterior uveitis (iritis)
C.Bacterial conjunctivitis
D.Episcleritis
Explanation: Anterior uveitis (iritis) classically presents with a painful red eye, photophobia, blurred vision, ciliary (circumcorneal) injection and a small, often irregular pupil. Cells and flare in the anterior chamber on slit-lamp examination are diagnostic. It requires urgent ophthalmology referral for topical steroids and cycloplegics.
5A 65-year-old man presents with a swollen, hot, tender left first metatarsophalangeal joint. Joint aspiration shows negatively birefringent needle-shaped crystals under polarised light microscopy. Which is the most appropriate first-line treatment if he has stable chronic kidney disease (eGFR 35)?
A.High-dose NSAID such as naproxen
B.Allopurinol started immediately
C.Intravenous ceftriaxone
D.Oral colchicine
Explanation: The crystal findings confirm acute gout. In a patient with chronic kidney disease, NSAIDs are relatively contraindicated, so colchicine (with dose adjustment for renal function) or a short course of corticosteroids is preferred. Allopurinol should never be started during an acute attack as it can prolong or worsen the flare.
6A 45-year-old man with type 1 diabetes presents unwell. Capillary blood glucose is 28 mmol/L, capillary ketones 4.5 mmol/L and venous pH 7.18 with bicarbonate 12 mmol/L. After starting 0.9% sodium chloride, what is the recommended fixed-rate intravenous insulin infusion rate for diabetic ketoacidosis in adults?
A.0.025 units/kg/hour
B.0.5 units/kg/hour
C.0.1 units/kg/hour
D.1 unit/kg/hour
Explanation: UK Joint British Diabetes Societies guidance recommends a fixed-rate intravenous insulin infusion (FRIII) of 0.1 units/kg/hour for adult DKA, alongside fluid resuscitation. The aim is to reduce ketones by at least 0.5 mmol/L/hour and correct the acidosis; glucose is supplemented with 10% dextrose once below 14 mmol/L.
7A 22-year-old man presents with a 2-day history of severe sore throat, trismus and a muffled hot-potato voice. Examination shows unilateral peritonsillar swelling with deviation of the uvula to the opposite side. What is the most appropriate immediate management?
A.Oral penicillin V and discharge
B.Urgent ENT referral for needle aspiration or incision and drainage
C.Reassurance and analgesia only
D.Tonsillectomy on the same admission
Explanation: The features describe a peritonsillar abscess (quinsy): unilateral swelling, trismus, muffled voice and uvular deviation. Management requires drainage by needle aspiration or incision and drainage by ENT, together with intravenous antibiotics and analgesia. Failure to drain risks airway compromise and spreading deep neck infection.
8A 35-year-old woman presents with a sudden severe occipital headache that reached maximum intensity within seconds (thunderclap). CT head performed 4 hours after onset is reported as normal. What is the most appropriate next step to exclude subarachnoid haemorrhage?
A.Discharge with analgesia as CT excludes bleed
B.Lumbar puncture at 12 hours after headache onset
C.Immediate CT cerebral angiography only
D.MRI brain in 6 weeks
Explanation: A normal CT within 6 hours of onset has very high sensitivity for subarachnoid haemorrhage, but at 4 hours many UK protocols still recommend confirmation when suspicion is high. If LP is pursued it should be performed at least 12 hours after symptom onset to allow xanthochromia to develop, detected by spectrophotometry. The combination of normal CT and negative LP effectively excludes SAH.
9A 28-year-old woman presents 6 weeks after her last menstrual period with lower abdominal pain and light vaginal bleeding. A urine pregnancy test is positive. Transvaginal ultrasound shows an empty uterus and a small adnexal mass with no fetal heartbeat; serum beta-hCG is 1800 IU/L. What is the most likely diagnosis?
A.Complete miscarriage
B.Ectopic pregnancy
C.Intrauterine pregnancy of uncertain viability
D.Molar pregnancy
Explanation: A positive pregnancy test with an empty uterus and an adnexal mass on transvaginal ultrasound, particularly with a beta-hCG above the discriminatory zone, strongly suggests an ectopic pregnancy. Pain and bleeding in early pregnancy must prompt exclusion of ectopic pregnancy, which is potentially life-threatening if it ruptures.
10A 60-year-old man with metastatic prostate cancer presents with progressive bilateral leg weakness, urinary retention and a sensory level at the umbilicus. Which investigation and treatment combination is most appropriate?
A.Plain spinal X-ray and bed rest
B.Whole-spine MRI and high-dose dexamethasone
C.CT abdomen and pelvis with analgesia
D.Nerve conduction studies and physiotherapy
Explanation: This is metastatic spinal cord compression (MSCC). Urgent whole-spine MRI is the investigation of choice, and high-dose corticosteroids (typically dexamethasone 16 mg daily) should be started immediately to reduce oedema, alongside urgent discussion with oncology and spinal/radiotherapy services. Delay risks permanent paralysis.

About the MRCEM Intermediate SBA Exam

The MRCEM Intermediate SBA is the second of the three MRCEM components, assessing applied emergency medicine knowledge through 180 single best answer questions across two papers. It is blueprinted to Year 1-3 Specialty Learning Outcomes (SLOs) of the RCEM 2021 Emergency Medicine curriculum and replaced the FRCEM Intermediate SAQ in August 2021.

Assessment

180 single best answer questions in two 90-question papers (2 hours each) sat on the same day, with a 1-hour break. Mapped to Year 1-3 Specialty Learning Outcomes of the RCEM 2021 EM curriculum.

Time Limit

4 hours total (two 2-hour papers plus a 1-hour break)

Passing Score

Variable pass mark set by modified Angoff plus one standard error of measurement; e.g. 117/180 in January 2025. No negative marking.

Exam Fee

2026: approx GBP 429 (Member UK) to GBP 609 (Non-member International), depending on membership and location. Check the RCEM exam calendar for current fees. (Royal College of Emergency Medicine (RCEM))

MRCEM Intermediate SBA Exam Content Outline

33%

SLO1 Complex stable patient

~60/180 questions covering cardiology, respiratory, neurology, endocrine, GI, toxicology, environmental, ENT, ophthalmology, O&G and oncological emergencies in the stable but complex patient.

22%

SLO3 Resuscitate

~40/180 questions on ALS and peri-arrest care, sepsis, organ failure (excluding major trauma) and palliative/end-of-life care.

17%

SLO4 Injured patient

~30/180 questions on major trauma and other injury presentations, including pain and sedation and major and minor injury management.

14%

SLO5 Paediatric Emergency Medicine

~25/180 questions across paediatric clinical categories plus neonatal emergencies and safeguarding.

6%

SLO6 Procedural skills

~10/180 questions on procedural skills and basic anaesthetic care: airway, chest drain, pacing, sedation, POCUS, vascular access and wound management.

8%

SLO7 Complex or challenging situations

~15/180 questions on legislation, organ/tissue donation, information governance, safeguarding, and evidence and guidelines.

How to Pass the MRCEM Intermediate SBA Exam

What You Need to Know

  • Passing score: Variable pass mark set by modified Angoff plus one standard error of measurement; e.g. 117/180 in January 2025. No negative marking.
  • Assessment: 180 single best answer questions in two 90-question papers (2 hours each) sat on the same day, with a 1-hour break. Mapped to Year 1-3 Specialty Learning Outcomes of the RCEM 2021 EM curriculum.
  • Time limit: 4 hours total (two 2-hour papers plus a 1-hour break)
  • Exam fee: 2026: approx GBP 429 (Member UK) to GBP 609 (Non-member International), depending on membership and location. Check the RCEM exam calendar for current fees.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

MRCEM Intermediate SBA Study Tips from Top Performers

1Study by SLO and respect the blueprint weightings - SLO1 (complex stable patient) is the largest section, so prioritise breadth across acute medical presentations while still covering resuscitation and paediatric EM.
2Anchor your revision to current UK standards (RCEM, NICE, BNF, Resuscitation Council UK, BTS/SIGN) because SBA stems test applied decisions such as drug doses, thresholds and algorithm steps.
3Practise full 180-question timed sets to build the pace needed for two 90-question papers, and review every wrong answer to convert recall into clinical reasoning.

Frequently Asked Questions

How many questions are on the MRCEM Intermediate SBA and how long is it?

The exam has 180 single best answer (SBA) questions delivered as two 2-hour papers of 90 questions each, sat on the same day with a 1-hour break, giving 4 hours of testing time.

What is the pass mark for the MRCEM Intermediate SBA?

There is no fixed pass mark. RCEM uses a modified Angoff standard-setting method plus one standard error of measurement, so the pass mark changes each diet (for example it was 117 out of 180 in January 2025). There is no negative marking.

What is the MRCEM Intermediate SBA blueprint?

Questions are blueprinted to six Specialty Learning Outcomes from the RCEM 2021 curriculum: SLO1 complex stable patient (~60), SLO3 resuscitate (~40), SLO4 injured patient (~30), SLO5 paediatric EM (~25), SLO6 procedural skills (~10) and SLO7 complex/challenging situations (~15).

Who runs the exam and how is it delivered?

The Royal College of Emergency Medicine (RCEM) runs the MRCEM Intermediate SBA. It is a computer-based theory exam; from 2026 RCEM delivers its written exams through Surpass Assessment test centres worldwide (previously via Pearson VUE).