MRCEM SBA pacing strategy: time per question that actually works

Last verified: 30 May 2026.

TL;DR — what to do with the clock

• Target speed: 80 seconds per question. 90 SBAs in 120 minutes per paper is your hard ceiling.
• First-pass speed: aim for 60–65 seconds per question. That banks ~25 minutes of review time.
• Skip rule: if you have not picked an answer at the 90-second mark, choose your best guess, flag it, move on. No exceptions.
• Commit rule: for any question where the diagnosis or next step is obvious within 30 seconds, lock it in and do not revisit. Most “changed” answers on review are changed wrongly.
• Checkpoints per paper: Q30 done by 30:00. Q60 done by 65:00. Q90 done by 100:00. Last 20 minutes = flagged review only.
• If you’re running out of time in practice papers: the problem is almost never speed of reading — it’s indecision on borderline questions. Fix the skip rule first.

How is the MRCEM SBA actually structured?

Per the RCEM Exam Regulations (2025, in force for 2026 diets), the MRCEM Intermediate SBA is 180 single-best-answer questions delivered as two two-hour papers, with 90 questions per paper and a one-hour break between them. From 2026 onwards it’s delivered via Surpass Assessment (replacing Pearson VUE). There is no negative marking — every blank is a missed mark. See also our guide to an FRCEM SBA flagging strategy (mark and return). See also our guide to the MRCEM Intermediate SBA pass percentage.

That gives you a maximum of 120 minutes ÷ 90 questions = 80 seconds per question as an absolute average. Anything slower and you are mathematically not finishing the paper. Anything faster on the first pass is bankable review time.

Why am I running out of time on practice papers?

Three patterns come up repeatedly in candidate post-mortems on r/doctorsUK and the RxPrep group:

1. You’re re-reading the stem. If you’ve read the vignette twice and still don’t have a diagnosis, the answer isn’t in the stem — it’s in your differential. Move on.
2. You’re second-guessing the obvious. RCEM examiners write straightforward stems. The “catch” is rarely a trick. If two answers seem equally right, you’re overthinking — pick the most clinically conservative and flag.
3. You’re treating it like a primary paper. SBA isn’t MCQ recall. You’re being tested on what to do next, not on whether you can recite the Krebs cycle. Re-reading basic-science stems wastes time you need for SLO 1 (complex stable patient) and SLO 3 (resuscitation) questions, which dominate the paper.

What’s a realistic per-question target?

Three numbers to memorise: See also our guide to how to read vague MRCEM SBA stems.

• 80 seconds — your hard average ceiling. Cross this on average and you don’t finish.
• 60–65 seconds — your first-pass target. This is the window Pastest and Bromley Emergency Courses both recommend for MRCEM-style SBAs, and it banks roughly 20–25 minutes per paper for flagged review.
• 90 seconds — the hard ceiling for any single question. If you’re still deliberating, commit your best guess, flag, move on. You can come back if there’s time.

Timing checkpoints — where you should be at each marker

Tape these to your monitor before the exam (mentally, at least). The clock counts down from 2:00:00 on Surpass — the “Time elapsed” column below is what your wall clock should read.

If at Q30 your wall clock reads 35:00 or worse, you are five minutes behind and bleeding. Hit the skip rule harder for the next 30 questions to claw it back — don’t hope it averages out.

What pacing mistakes does the average candidate make?

Recurring themes from candidates who fail or barely scrape through, pulled from doctorsUK and RxPrep post-exam threads:

• Spending 3+ minutes on a single tough question. Every minute over 90 seconds costs you the chance to answer roughly 1.3 other questions, all of which you might have got right. The maths is brutal: lingering is a net negative even when you eventually get the hard one correct.
• Re-checking the time every few questions. Checking the clock at Q1, Q15, Q30, Q45, Q60, Q75 and Q90 is enough. Glancing at it every two questions burns 30+ seconds across the paper and feeds anxiety.
• Treating Paper 2 as the recovery paper. The papers are equal weight. If you under-perform on Paper 1, the only fix is to nail Paper 2 with the same pacing discipline — not to bank goodwill or panic-revise during the break.
• Saving the calculations for the end. Paediatric dose questions and the rare ECG rate count take longer than recall questions. Don’t leave them all for the flagged list — do them as you encounter them, with your scratch board, then move on.
• Spending more time on long stems than short ones. A six-line vignette doesn’t need six lines of thinking. RCEM stems are padded to test whether you can extract the relevant facts. The detail you need is usually in the last two sentences and the question itself.

Are some question types worth more time than others?

Every SBA is worth one mark. But the time you should spend differs:

• Diagnosis-named management questions (anaphylaxis, tension pneumothorax, STEMI): under 30 seconds. You either know the next step or you don’t.
• Single-system clinical vignettes (chest pain workup, paediatric fever): 60-80 seconds. Read once, work the differential, commit.
• Multi-system complex stable patients (elderly polypharmacy, undifferentiated collapse): up to 90 seconds. These are the hardest and most common — they’re what the 65-second average is buying time for.
• Calculations (APLS doses, fluid resus volumes): 60-90 seconds including scratch-board working. Don’t do them in your head — errors here are unforced.
• Ethics, capacity, safeguarding (SLO 7): under 45 seconds. The answer is almost always “involve a senior”, “document and refer”, or “act in the patient’s best interest”. Don’t overthink them.

When should I skip and flag?

Skip the moment any of these become true:

• The clock on this question hits 90 seconds and you haven’t chosen.
• You’ve read the stem twice and your differential is still wide open.
• You’re between two answers and re-reading the same sentence to break the tie.
• The stem references a guideline (NICE, RCEM, JRCALC) you can’t place — guess the most conservative answer (safe disposition, senior involvement, investigation before treatment) and flag.

Flagging is free and Surpass remembers your guess. There is no penalty for guessing and no negative marking, so never leave a question blank when you flag it. Put your best instinct in, then move on.

When should I commit and stop revisiting?

Commit immediately — and skip the flag — when:

• You’ve seen the exact presentation in a question bank and you remember the answer.
• The diagnosis is named in the stem and the question is purely management (e.g. anaphylaxis → IM adrenaline; massive PE with arrest → thrombolysis).
• It’s a guideline-pure recall question (e.g. paediatric APLS doses, sepsis bundle timings) you know cold.
• You’ve read it once, chosen confidently in under 30 seconds, and have no nagging doubt.

The data on revisits is consistent across multiple candidate accounts: most changed answers on a second pass are changed wrongly. Your first instinct on a confidently-answered question is usually right. Save the review time for the genuinely flagged ones.

How should I use the one-hour break between papers?

RCEM allows you to leave the test centre during the break. Two practical rules:

• Eat and hydrate, don’t revise. Anything you cram in the break will displace what you already know and won’t stick anyway. Bring food.
• Don’t debrief Paper 1. Not with your phone, not with the candidate next to you, not in your head. Paper 2 is a clean slate — treat it as exam day one.

If you finished Paper 1 feeling rushed, the cause is almost always the indecision pattern in section above. Reset the skip rule for Paper 2 — 90-second hard ceiling, no exceptions.

How do I train pacing during revision?

Three changes that move the needle:

1. Stop doing untimed question banks. Every question set you do should be on a clock — at minimum 65 seconds per question. Untimed practice trains you to ruminate, which is exactly the habit that wrecks exam day.
2. Do at least two full 90-question mocks under exam conditions in the four weeks before your diet. Phone off, no breaks, single sitting. Pastest, Bromley, and the official RCEM mock all run to format.
3. Track your skip rate. Aim to flag 10–15 questions per paper on first pass. Below five and you’re probably overcommitting to uncertain answers. Above 25 and you’re probably under-prepared on the SLOs.

What if I’m still finishing with no time for review?

That’s a sign your first-pass speed is closer to 80 seconds than 65. Two diagnostic questions:

• Are you reading the question stem before the vignette? Reading the actual question first (e.g. “What is the most appropriate next investigation?”) primes you to extract the right details from the stem on a single read. Cuts 5–10 seconds per question.
• Are your answer choices being read fully before you commit? If you’re reading A, deciding it’s right, then reading B–E just to confirm — stop. On a confidently-known question, scan E to A looking for a better answer, and if none jumps out, commit.

FAQ

How many questions are on the MRCEM SBA?

180 single-best-answer questions, split into two papers of 90 questions each, with two hours per paper and a one-hour break between papers. Confirmed in the RCEM Exam Regulations document for 2025/2026 diets.

How long do I get per question?

80 seconds maximum if you spread time evenly. Most strong candidates work at 60–65 seconds on the first pass so they bank 20–25 minutes for flagged review.

Is there negative marking on the MRCEM SBA?

No. You score one mark per correct answer and zero for wrong or blank. Always guess — never leave a question unanswered, even when you flag it for review.

What’s the pass mark?

RCEM uses the Angoff method, so the exact pass mark varies by diet. Historically it sits around 60–65%, but you should aim well above that on practice papers because exam-day performance typically dips 5–10% under time pressure.

Can I flag and return to questions on Surpass?

Yes. The Surpass platform shows a question navigator and lets you mark for review. Use it — but treat the flagged list as a final-20-minutes job, not an interruption to your first pass.

What happens if I run out of time?

Surpass auto-submits when the clock hits zero. Anything blank scores zero. If you’re at Q80 with five minutes left, stop reading stems — guess C for the rest, submit, and pray. A guessed answer is mathematically better than a blank one, every time.

Should I do paper 1 or paper 2 first if I can choose?

You can’t. The papers run in fixed order on the day. Both are blueprinted to the same SLO weightings, so there’s no “easier” paper to chase.

How many practice questions should I do before the exam?

Candidates who pass commonly report doing 2,000–4,000 SBA-style questions across Pastest, Bromley, and RCEM Learning. Volume matters less than analysis — every wrong answer should generate a flashcard or note on why you got it wrong.

Do I get extra time for non-native English speakers?

No. RCEM does not grant additional time for English as a second language. Documented disabilities and specific learning needs can be assessed for reasonable adjustments — apply via the RCEM exams office well before the application window closes.

Can I use scratch paper during the exam?

Yes. You’re provided with a wipeable board or scratch paper at the test centre. Useful for paediatric weight-based dosing calculations and the occasional ECG rate count. Don’t use it for anything you should know cold.

What if I fail by a few marks?

You get up to six attempts at the MRCEM SBA. A narrow fail usually means pacing or SLO weighting, not a knowledge gap — review your timing pattern on the score report and rebalance toward SLO 1 (complex stable patient, ~60 questions) and SLO 3 (resuscitation, ~40 questions) before the next sitting.

Next step

If you want more MRCEM SBA-specific revision walkthroughs, sample timed mocks, and SLO-aligned content, head to emfinalexams.com — built specifically for FRCEM and MRCEM candidates.

Facts last verified 30 May 2026 against the RCEM Exam Regulations (2025, V1) and the RCEM MRCEM Exams page. Exam fees, dates, and the Surpass Assessment delivery model are correct as of the 2026 January and September diets. Always confirm the latest format against rcem.ac.uk before booking.

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