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Real charts.
Real reasoning.

AI-powered patient cases that teach you how to think, not just what to know.

Work a real patient case in a full virtual EMR. An AI patient answers your questions. An AI attending coaches your reasoning. Free across 11 health professions.

Opens in the virtual EMR · Chest pain workup · No signup
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520+
Clinical Cases
11
Health Professions
53
Mechanism Modules
Free
To Use
What you'll actually do

Three ways ReasonDx trains clinical thinking

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Work the chart

A real EMR with vitals, labs, notes, and orders. Not a toy, a realistic patient record you navigate the way you would on rounds.

Open the EMR →
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Reason with an AI attending

CoachDx asks Socratic questions about your differential, your framework, your blind spots, then gives feedback on how you think, not just what you conclude.

Meet CoachDx →
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Master the mechanisms

MechanismDx modules unpack the pathophysiology behind the cases you're working. When a case exposes a gap, fix it, then come back and test mastery.

Browse mechanisms →