Practice high-stakes decisions in branching emergency medicine cases — shock, airway emergencies, OMI, toxicology, sepsis, and pediatric crises. Get feedback on each choice and follow the patient through the resulting clinical states.
Most simulation platforms teach protocols. EM-Sim trains clinical reasoning — the skill that separates good clinicians from great ones when the pressure is on.
Every scenario is authored by a board-certified emergency physician. No committee-designed protocols. No generic medical content.
Scenarios are designed to expose anchoring bias, premature closure, and search satisfaction — the errors that cause real harm.
Your choices can change the patient's course. Explore case-specific reassessment, recovery, and harmful outcomes, with feedback at each decision.
Cases are calibrated to the cognitive demands of independent practice — not intern-level checklists. Build the judgment unsupervised practice demands.
Reviewed-source Tutor — choose a supported case. Responses show intact teaching passages with their case context. Questions outside those passages cannot be answered.
Track decision accuracy, time-to-critical-action, and performance trends across attempts. Know exactly where your reasoning breaks down.
Receive feedback at each decision and see your score and completed attempts in your training history.
32 cases spanning cardiac, trauma, airway, toxicology, sepsis, and pediatric emergencies — calibrated to real ED case mix and acuity.
These presentations are rare enough that you may not see them for months — and lethal enough that hesitation costs lives. EM-Sim keeps your recognition and response sharp between real encounters.
Posterior STEMI, Wellens pattern, de Winter T-waves — the ECG findings that kill when missed on a normal-looking tracing.
Needle decompression timing, bilateral breath sounds that mislead, and the hemodynamic collapse that cannot wait for imaging.
The chest pain that looks like ACS. Recognize the pulse differential, the widened mediastinum, and the contraindication that changes everything.
Atypical presentations without fever, the lactate that is deceptively normal, and the window for source control that closes fast.
Epiglottitis vs. croup vs. foreign body — the airway that deteriorates in the time it takes to get a lateral neck film.
Tricyclic overdose, calcium channel blocker toxicity, and the antidotes with narrow windows. Recognize the pattern before the rhythm deteriorates.
From STEMI to sepsis, trauma to toxicology — master the full spectrum of emergency medicine