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* CLINICAL REASONING TRAINING · FOR MEDICAL STUDENTS, PHYSICIANS & PA/NP TRAINEES

Learn how the diagnosis gets made.

Work a real case one finding at a time. Rank the categories, name your diagnoses, commit before the reveal, then see how your reasoning held up next to an expert’s.

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22 common complaints · Your first case is free · Built by a practicing physician
A correct answer can hide the important part

Same answer. Different reasoning.

62 M · chest pressureIllustrative ACS case · five reasoning beats

Flexible learner path

The ranking changes when the evidence changes.

Ends at ACS
  1. 01Chief Complaint

    62 M, chest pressure. Opens broad — ACS, aortic dissection, and PE all stay live.

  2. 02History

    Exertional and diaphoretic. ACS rises, but aortic dissection stays pinned to the list.held

  3. 03Physical Exam

    Equal pulses, no murmur. Aortic dissection is lowered on evidence, not dropped on a hunch.held

  4. 04Labs & ECG

    Troponin elevated, new lateral ST-depression. ACS moves to the top.

  5. 05Diagnosis

    Commits to ACS — while still able to name what would have changed the answer.

Anchored learner path

The first assumption persists too long.

Ends at ACS
  1. 01Chief Complaint

    62 M, chest pressure. Jumps straight to ACS.

  2. 02History

    “Sounds cardiac.” Aortic dissection is dropped before any exam.missed

  3. 03Physical Exam

    Pulses never checked — the killer was already gone from the list.missed

  4. 04Labs & ECG

    Troponin elevated. It only confirms the anchor.

  5. 05Diagnosis

    Commits to ACS — but can't say what would have changed the answer.

Both learners chose ACS. Only one could defend how the evidence changed the path.

The gap your other tools leave

Most tools grade the answer. Acumen trains everything before it.

Recall gets you through the exam. The reasoning between the clue and the diagnosis is a different skill — and it’s the one you use at the bedside.

You start with
Clinical clues
You end with
Diagnosis

No percentages — the six moves other tools skip.

Proof, not a pitch

See the reasoning move, one finding at a time.

Watch a differential actually move

Every finding moves the ranking.

62 M, chest pressure. Rank the categories before any detail lands.

Stage 1 of 6
▤ Differential · Stage 1
Acute coronary syndrome watching
Aortic dissection watching
Pulmonary embolism watching
GERD / chest wall watching

Start broad enough to be safe — which killers have to stay in view?

The question every attending asks

“What’s your differential — and why is number one, number one?”

The raw story

“He's had this pressure since this morning, kind of came on when he was carrying groceries, he's sweaty, feels a little short of breath, had something like this last year but not as bad…”

What you walk away with

The artifact a right-or-wrong score can’t give you.

Every case ends with a receipt of how you reasoned — what you thought first, what moved you, what you kept on the danger list, and the one trap to watch next time.

Your reasoning receipt · 62 M · chest pressure
What I thought first
ACS, aortic dissection, and PE — all live
What changed the case
Troponin elevated and new lateral ST-depression
What I kept on the danger list
Aortic dissection — lowered when the pulses were equal, never dropped
Where I diverged from the expert
The expert re-checked a blood-pressure differential between arms
One trap to watch next time
Anchoring on the first ischemic story

* Built by a practicing physician

Acumen Atlas is built around the clinical-reasoning loop you’re expected to run on rounds, in clinic, and at the bedside — the finding-by-finding method used to teach diagnostic reasoning, made into something you can practice on your own.

Pre-launch, with 22 common complaints and more on the way. Your first case is free.

Try one case. See how your reasoning changes.

Your first case is free. No card required.

Try one free case