ACEM Primary Examination Format Explained
Overall structure
Two components: a written paper of select-choice questions, then a four-station integrated viva.
Components and structure
The ACEM Primary Examination is assessed across the following components:
- Written (select-choice (SCQ)) — 360 questions, 360 min. Criterion-referenced; two 3-hour papers.
- Integrated Viva (viva) — 4 stations, 40 min. Criterion-referenced. Four 10-minute stations across the four basic science subjects.
Both components must be passed. Maximum 3 attempts per component.
Attempt limits: Max 3 attempts per component.
Exam format glossary
Key assessment formats used in the ACEM Primary Examination, defined. Each definition is general and applies across colleges.
- Viva voce
- A structured oral examination in which examiners question the candidate in real time, assessing reasoning, justification and depth of understanding under pressure.
What the format means for your preparation
The single most common preparation mistake is studying as if the examination only had an MCQ component. Format-aware preparation looks like this:
- MCQ components reward high question volume and pattern recognition. Read explanations, not just answers, and revisit weak domains with spaced repetition.
- Short answer / SAQ components reward a prioritised, structured response under time pressure. Practise writing complete answers in the available time, not just outlining points.
- Viva or OSCE components reward verbalised structured reasoning. Practise aloud, ideally with feedback, rather than rehearsing silently.
- Practical or image-based components reward repeated exposure under time pressure. Build a routine that includes timed slide or image interpretation.
What separates pass from fail under this format
Across multiple sittings, these failure modes recur:
- Shallow anatomy preparation - emergency-relevant anatomy (airway, vascular access sites, trauma) is heavily tested.
- Insufficient question-bank practice: pattern recognition from high-volume MCQ practice is essential for this format.
- Neglecting pharmacology, particularly drugs used in the emergency setting.
- Time pressure in the written paper - practising under exam conditions is the only reliable preparation.
How PRIMEX maps to the format
- MCQ question bank mapped to the ACEM Primary curriculum with detailed explanations for each answer.
- Spaced-repetition scheduling to consolidate high-yield content across anatomy, physiology, and pharmacology.
- Progress analytics to identify weak curriculum areas before your sitting date.
Start your 7-day free PRIMEX trial for the ACEM Primary Examination and practise in the format you will actually sit.
Start free trialFrequently asked questions
What is the format of the ACEM Primary Examination?
Two components: a written paper of select-choice questions, then a four-station integrated viva.
How many components does the ACEM Primary Examination have?
The examination has 2 assessed components, examined and weighted as the examining body specifies. The structured breakdown above reflects the official examination materials.
Which component is hardest?
Difficulty varies by candidate. Most fail-tier outcomes trace back to underprepared structured-answer technique or insufficient question practice volume rather than to one specific component.
How should the format change how I prepare?
Match your practice mode to the format. SAQ paper means write structured timed answers; viva or OSCE means rehearse speaking aloud under time pressure; MCQ means build pattern recognition through high-volume practice.
Does PRIMEX cover every component?
PRIMEX covers each component of the ACEM Primary Examination with format-specific practice: MCQ banks, AI-graded SAQ practice, and viva or OSCE simulation as the format requires.