This is for emergency physicians who want to use ACEP PEER correctly for the ABEM Qualifying Examination: not as an infinite bank to grind, but as a high-authority calibration source that tells you what good EM board questions look and feel like. PEER is the American College of Emergency Physicians' flagship self-assessment, editorially strong and blueprint-aligned. Its principal limitation for this purpose is that authority is finite — once you have recognised its items, they stop measuring reasoning, so calibrate deliberately and get your unseen volume elsewhere.
What ACEP PEER offers right now
PEER (the Physician's Evaluation and Educational Review) is produced by ACEP's editorial board of practising emergency physicians. The figures below are vendor-reported as of 19 July 2026; confirm the live numbers and price on acep.org.
| Feature | Vendor-reported position (19 July 2026) |
|---|---|
| Question volume | Over 3,300 EM board-review questions, plus 2,750+ bonus items and 2,800+ flashcards |
| Additional content | 350+ lecture videos and 1,700+ images/infographics |
| Target ABEM exams | In-Training Exam and the Qualifying Examination (a separate PEER product targets MyEMCert) |
| Adaptive features | Confidence-rated custom quizzes and "dynamic" mock exams generated to the ABEM blueprint |
| Access period | One-year subscription |
| Price | Vendor-reported tiers — members US$379, resident/international members US$229, non-members US$629; verify current pricing |
Identify what is genuinely official
Precision matters here, because "official" is doing a lot of work. ACEP is the specialty society; PEER is its authoritative self-assessment. ABEM is the certifying board; it owns the exam, publishes the content specifications and the EM Model, and may release its own tutorials and sample items. PEER is society-authoritative and blueprint-aligned, written by emergency physicians — but it is not ABEM's exam and its items are not ABEM's items. So your calibration stack has two tiers: ABEM's own published specifications and any released samples are the primary reference for format and weighting; PEER is the best widely available proxy for style and cognitive level. Endorsed commercial preparation is a third tier and should be labelled as such, not confused with either.
The ABEM Qualifying Examination blueprint
The exam is a computer-based, single-best-answer test at Pearson VUE of roughly 305 scored items, built on the EM Model: about twenty condition and organ-system categories over a set of physician tasks, with a published acuity frame of approximately 30% critical, 40% emergent and 21% lower-acuity presentations, minimums of at least 8% paediatric and at least 6% geriatric content, and image-based items. Passing leads to the Oral Certifying Examination. Read PEER against this specification, not the other way round.
Extract the signals
Used as a calibration instrument rather than a grind, PEER tells you concrete things about the target. Read a sample of items and record: stem length and structure (how much clinical narrative before the question); option construction (how plausible the distractors are, how often "next best step" rather than "diagnosis" is asked); cognitive level (recall versus application versus management under uncertainty); image use (ECGs, radiographs, clinical photographs and what you are expected to do with them); timing implied by stem length at roughly one minute per item; the absence of negative marking; and domain emphasis across the EM Model. These signals are the point of the exercise — they translate directly into how you should practise on any bank.
A side-by-side matrix
Build a simple comparison between the official-proxy material and your main ABEM bank, without copying any item text. For each dimension, record where your bank sits relative to PEER.
| Dimension | ACEP PEER (official-proxy) | Your main ABEM bank | Implication |
|---|---|---|---|
| Stem length | (your observation) | (your observation) | Adjust reading pace |
| Cognitive level | Application / management-weighted | (your observation) | If your bank is more factual, add reasoning practice |
| Image use | Frequent, interpretive | (your observation) | Drill images if your bank is thin |
| Distractor plausibility | High | (your observation) | Easier distractors flatter your score |
| Domain emphasis | Blueprint-aligned | (your observation) | Reallocate quotas to under-covered domains |
Use discrepancies diagnostically
The matrix is a diagnosis, not a scorecard. If your commercial bank has shorter stems and more single-fact recall than PEER, your real exam accuracy will lag your bank percentage, because the exam asks for application under uncertainty — so add reasoning-heavy, management-focused practice. If your bank's distractors are softer, your percentage is inflated and you should discount it. If your bank is thinner on images than PEER, drill images specifically. If your bank over-weights a domain PEER treats lightly, rebalance toward the blueprint. Each discrepancy converts into a concrete change in what and how you practise.
Preserve calibration value
The single most common way to waste PEER is to burn it. Sit it — or defined blocks of it — unseen, timed and once, the way you would treat official material, and log the result as a calibration data point. Do not re-run the same items until recognition replaces reasoning; a familiar PEER question measures your memory of that question, not your EM knowledge. Ring-fence a portion from the start so you have clean material for a late calibration check. The 3,300-plus question volume is generous, but authority does not regenerate after you have seen it.
Translate findings into quotas and conditions
Turn the calibration into a plan for the remaining weeks. If the matrix showed management-heavy cognitive demand, set a quota of timed "next-step" items per week. If images were under-practised, schedule dedicated image blocks. If a blueprint domain is under-covered in your bank, assign it a minimum unique-item quota and an accuracy target. Fix the practice conditions too: timed, mixed, no notes, at exam pace — because PEER's signal is not just about content, it is about the reasoning tempo the exam demands.
A seven-day worked example
One week using PEER for one defined job — calibration and targeted review of official-proxy material — and iatroX for unseen transfer volume. No proprietary-algorithm claims are made about either tool.
- Monday — One timed, unseen PEER block; score it and analyse the misses by type. Do not re-run it.
- Tuesday — Build or update the side-by-side matrix from Monday's block; note where your main bank diverges.
- Wednesday — 30 unseen, timed iatroX items in the domains the matrix flagged; compare error types, not wording.
- Thursday — Targeted review of the concepts PEER exposed as weak, using a primary source and a written rule.
- Friday — Image and "next-step" management block, the two signals PEER most reliably surfaces.
- Saturday — One timed random mixed block at exam length; log pacing and first-attempt accuracy.
- Sunday — Update quotas for next week from the gaps; keep a reserve of unseen PEER for final calibration.
PEER sets the standard for what good items look like; iatroX supplies the fresh, unseen volume the finite official-proxy set cannot, so you measure reasoning rather than memory. Keeping them in separate roles is the two-Q-bank rule.
Decision checklist: continue, supplement, switch or stop
- Continue using PEER for calibration and targeted review while it is still surfacing genuine weaknesses on unseen blocks.
- Supplement with an unseen bank for volume as soon as you have extracted PEER's style signals — you should not be relying on recognised PEER items for your daily count.
- Switch your main volume source only for a measurable coverage gap against the blueprint, not for novelty.
- Stop re-running PEER items the moment recognition sets in; preserve the remainder for a clean final calibration.
Three mistakes this workflow is designed to stop
First, treating PEER as an infinite grind bank; its value is as a calibration standard, and grinding it destroys exactly that value. Second, confusing society-authoritative with board-official — PEER is the best widely available proxy, but ABEM's own specifications are the primary reference for format and weighting. Third, calibrating on style but never changing your practice; the matrix is worthless unless it moves your quotas and conditions.
Bottom line
ACEP PEER is the strongest widely available window into how ABEM-style questions are built and how hard they think. Use it as a calibration instrument: sit it unseen and timed, extract the signals into a side-by-side matrix, and let the discrepancies reset your quotas and practice conditions. Then get your unseen volume from a bank you can measure against — iatroX in this stack — so PEER stays a standard rather than becoming just more questions you have already seen.
Frequently asked questions
Is ACEP PEER enough for ABEM on its own? PEER is content-rich and society-authoritative, and for many candidates it can anchor a preparation plan. It is best used as a calibration and review standard rather than the only thing you do, because its authority is finite — once items are recognised they stop measuring reasoning. Pair it with an unseen bank for volume and treat ABEM's own materials as the primary format reference.
Which ABEM component does ACEP PEER not reproduce well? Like any multiple-choice resource, PEER does not reproduce the ABEM Oral Certifying Examination, which tests structured verbal case management. PEER targets the written Qualifying Examination and the In-Training Exam; prepare for the oral separately with case-based verbal practice.
How many ACEP PEER questions should I complete per day for ABEM? Because PEER's chief value is calibration, quality beats volume — a realistic pattern is one carefully analysed timed block every few days rather than a large daily grind, deliberately preserving unseen items for later. If you want a high daily question count, take it from an unseen volume bank and keep PEER for standard-setting.
When should I stop using ACEP PEER and move to mixed mocks? Once you have extracted PEER's style and cognitive-level signals and turned them into quotas, shift your daily work to timed mixed blocks on an unseen bank, holding back a reserve of PEER for a clean final calibration. In practice you never fully "stop" PEER — you stop grinding it and start rationing it.
How should I combine ACEP PEER with iatroX without duplicating practice? Give them separate jobs. PEER is the official-proxy calibration standard, sat unseen and timed; iatroX is the unseen volume and transfer-measurement layer for daily practice. Do not re-test the same recognised items in both — you compare error types across the two, using PEER to define the standard and iatroX to prove that corrections transfer to fresh material.
Editorial notes and references
Written by Dr Kolawole Tytler, NHS GP and founder of iatroX. Last checked 19 July 2026. Question counts, product scope, access periods and prices are vendor-reported and change without notice; confirm the current details on acep.org before relying on them. Note that ACEP PEER is society-authoritative but is not published by ABEM and its items are not the exam's items. Disclosure: iatroX operates a competing question bank, so this article confines iatroX's role to a job PEER does not claim — supplying unseen, blueprint-stratified ABEM items for transfer measurement — and is positive about PEER's calibration value where warranted. Corrections are welcome via the feedback route on iatrox.com. References: ABEM Qualifying Examination content specifications and the EM Model (abem.org); ACEP PEER for Physicians (acep.org/peer/peer-for-physicians); iatroX ABEM bank (iatrox.com/abem-emergency-medicine) and comparison hub (iatrox.com/compare); "Your Q-Bank Percentage Is Not Your Exam Score" (iatrox.com/blog/qbank-percentage-not-your-exam-score); and the blueprint-coverage matrix guide (iatrox.com/blog/question-bank-completion-is-not-coverage-how-to-build-a-blueprint-coverage-matrix-for-any-medical-exam).