Emergency MedicineMissed DiagnosisPlaintiff-side

Built for the missed-diagnosis ED case.
AI deposition trainer with ACEP + Surviving Sepsis depth.

EM is the highest-frequency medmal-claim specialty. Missed sepsis, missed PE, missed dissection, missed STEMI, missed stroke LKW — defense witnesses lose these cases when they freelance with "gut clinical judgment" instead of the validated decision rules the ACC/AHA, ACEP, and Surviving Sepsis Campaign have made the standard.

Try the 2-min EM demo → All specialties
13
EM failure modes
3
ACEP / Surviving Sepsis / AHA guidelines
7+
validated decision rules in the cross-exam canon

Why an EM-specific trainer matters

EM medmal cases concentrate around a small number of canonical archetypes: missed MI in the chest-pain patient, missed PE in the dyspnea patient, missed sepsis in the febrile patient, missed dissection in the chest+back patient, missed appendicitis in the abdominal-pain pediatric patient, missed stroke in the LKW-imprecise patient. The plaintiff's job is consistent: lock the witness into the published validated decision rule (HEART, Wells, PERC, NEXUS, qSOFA, Alvarado/PAS) and walk through the chart to show it wasn't used.

The trainer runs your defendant EM physician or expert through hostile cross built on that canon. Every question is grounded in either the chart you uploaded or the published rule that governs the standard.

The 13 failure modes

Sev 9

"Gut decision" framing

Witness characterizes the dispo as gestalt rather than evidence-based reasoning. Becomes "I used a feeling instead of the published standard."

"It was more of a gut call — she just didn't look that sick."
Sev 9

Last-known-well not anchored

Stroke patient — witness can't anchor LKW to a specific time; chart doesn't either. LKW drives tPA eligibility.

"I think the family said the symptoms started in the morning sometime."
Sev 9

Sepsis-bundle deviation

Deviated from CMS SEP-1 / Surviving Sepsis 1-hour bundle without documented rationale.

"We didn't follow the sepsis bundle exactly — the patient didn't fit the typical picture."
Sev 9

Aortic dissection not in differential

Chest/back/abdominal pain patient — dissection missing from differential, no CTA or D-dimer rationale.

"I wasn't really thinking dissection — her pain didn't sound classic."
Sev 9

Abnormal vital missed in chart-walk

Plaintiff walks deponent through trended vitals; witness can't explain why a tachy/tachypneic/hypotensive trend didn't prompt action.

"I didn't notice her HR was going up — I'd have to look at the trend."
Sev 8

HEART-score not documented

Chest-pain patient discharged with no documented HEART score per the 2021 ACC/AHA guideline.

"I didn't use a formal HEART score on him — I just used my clinical judgment."
Sev 8

Wells/PERC skipped for PE rule-out

Witness ruled out PE without a documented Wells or PERC reasoning chain.

"I didn't think she had a PE — I didn't do the Wells calculation."
Sev 8

Pediatric appy-delay

Delayed surgical consult on pediatric appendicitis without documented Alvarado or PAS score reasoning.

"She was probably just gastroenteritis — I figured we'd reassess in a few hours."
Sev 8

Nurse-escalation blame

"The nurse should have called me when the BP dropped" — system-claim defense, not depo-defense. Jury punishes this.

"The nurse should have escalated when the second BP came back low."
Sev 8

No repeat vitals before dispo

Discharged on stale vitals (>1hr old) when vitals had been trending abnormally.

"I didn't get a final set of vitals before sending her home — the nurse had checked earlier."
Sev 7

NEXUS criteria not applied for c-spine

Imaged or didn't image c-spine without invoking NEXUS or Canadian C-Spine Rule.

"She didn't look like she had a c-spine injury — I didn't do imaging."
Sev 7

Handoff/sign-out blame

Witness blames the incoming or outgoing colleague for the diagnostic miss.

"I signed her out as stable — what happened after wasn't on my watch."
Sev 7

Discharge instructions vague

Chart shows generic return-precaution boilerplate; witness can't quote case-specific language.

"I told her to come back if anything got worse."

The signature impeachment trap

"Gut decision" vs validated decision rule

Lock the witness into "clinical gestalt" framing, then walk through the validated rules they admit are the standard. The witness has framed their judgment as an unstudied alternative to a guideline-endorsed rule.

"You used your clinical judgment?" → "Yes."
"You're familiar with the HEART score, Wells criteria, and NEXUS rule?" → "Yes."
"Those are validated decision rules studied in thousands of patients?" → "Yes."
"You didn't use any of them on this patient."

Why this lands: the rules exist because clinical judgment alone produces a measurable miss rate. The witness's gestalt is by definition less reliable than the rule.

The 3 cited guidelines + the validated decision rules in scope

ACEP Clinical PoliciesChest pain, suspected PE, suspected stroke, acute abdominal pain — the "you used the wrong rule" canon for nearly every EM medmal archetype
Surviving Sepsis Campaign 2021 + CMS SEP-1 bundleTime-to-antibiotic and time-to-bundle benchmarks. SEP-1 is enforced under CMS reporting; failure to comply is itself a documentable deviation
AHA/ACC 2021 Chest Pain GuidelineFormal HEART-score and chest-pain-pathway adoption. Removes the "I used clinical gestalt" defense for chest-pain disposition.

The cross-exam canon also engages the following validated rules: HEART score (chest pain), TIMI (ACS), Wells criteria + PERC rule (pulmonary embolism), NEXUS + Canadian C-Spine Rule (cervical-spine imaging), Alvarado / PAS score (pediatric appendicitis), qSOFA / SIRS / SOFA (sepsis identification), NIHSS (stroke severity), ECASS-III (tPA window).

FAQ

How is this different from generic AI deposition tools?

Generic depo-prep AI runs the same script regardless of specialty. This trainer loads the EM specialty pack as soon as you tag the case — the AI examiner runs the gut-decision trap on chest-pain cases, walks the LKW timeline on stroke cases, surfaces the sepsis-bundle deviation on febrile patients, and recognizes specialty-specific medical terms (HEART, Wells, PERC, NEXUS, qSOFA, LKW, tPA, tenecteplase, SEP-1, Alvarado, PAS, NIHSS) in your witness's voice.

Does it work for defense expert prep too?

Yes. Flip to expert-prep mode and the AI runs as the hostile plaintiff attorney cross-examining your defense EM physician or expert witness. Same 13 failure modes are exactly what you need to patch in pre-depo prep.

What case types should I bring to it?

Any ED missed-diagnosis case: missed MI, missed PE, missed sepsis, missed stroke (LKW issue), missed dissection, missed pediatric appendicitis, missed c-spine fracture, discharge with stale vitals leading to bounce-back death.

Pricing?

Bundled in MedLegal AI Pro ($49/mo) for 1 user, Professional ($249/mo) for 5 users, or Firm ($499/mo) for 20 users. Free 14-day trial, no credit card. Pay-per-analysis $19/run if you only handle a few ED cases per year.

Start with the 2-minute EM demo

No signup, no mic. Walk through a sample missed-SAH-on-thunderclap-headache deposition in your browser. See the gut-decision trap, the cross-exam questions, the Bates-cited contradiction detection.

Run the 2-min demo → Start free 14-day trial

Deposing an emergency medicine expert on the other side? See questions to ask an emergency medicine expert witness at deposition.