The ACEM Primary exam: what it is and how to prepare for each part
The ACEM Primary has two parts that ask different things of you. Knowing the difference early changes how you spend your study time.
What the exam covers
The Primary examines the basic sciences that underpin emergency medicine: anatomy, physiology, pathology and pharmacology. It is a gate. You sit it before you progress through the rest of training, and you cannot sit the viva until you have passed the written examination.
The written examination
The Primary Written is an online, integrated multiple-choice (SCQ) examination across the four sciences: 360 questions across two 3-hour papers, sat in one day. Multiple-choice questions reward two different things: knowing the content, and reading a question stem carefully enough to see what it is really asking. Candidates who know the material still lose marks when they skim the stem or are drawn to the distractor that is almost right.
This is why practising questions matters more than rereading notes. Each wrong answer is information, but only if you understand why the right option was right and the others were not.
The integrated viva
Once you have passed the written examination, you sit the integrated viva, which runs as four 10-minute stations across the four sciences. A viva is a conversation, not a recall test. You are asked to talk through a scenario and show the examiner how you reason from the science to the clinical picture.
Reading and multiple-choice practice do not prepare you for this. You need to practise answering out loud, ideally to a person or a tool that responds, because the skill is structuring an answer under mild pressure.
What this means for how you prepare
Prepare for the two parts differently. For the written, cover all four sciences and track where you are weakest, because a strong domain does not make up for a weak one. For the viva, start speaking your answers early and keep doing it, rather than leaving it until the written is behind you.
Whatever you do, find out where you stand before you decide where to spend your hours. Most candidates over-study what they already know. ACEM allows up to three attempts at each part, and every attempt needs a new application and fee, so sitting when you are ready is worth more than sitting early.
Where to check the official details
Sitting dates, eligibility and the exact format can change. ACEM publishes the current information on its examinations page, and that page is the authority. ClintixPro is independent of ACEM and is not endorsed by it.
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