Emergency Room Negligence: Triage Failures, Missed Diagnoses, and EMTALA

Triage is the first decision point in the ED. The triage nurse assigns an acuity level (typically using the Emergency Severity Index, ESI 1 through 5), which determines how quickly the patient is seen, by whom, and with what monitoring.

Triage errors put high-acuity patients in the wrong queue. The classic example: a patient presenting with what appears to be a routine complaint (back pain, abdominal pain, headache) that is actually an aortic dissection, ruptured abdominal aneurysm, or subarachnoid hemorrhage. Assigned ESI 4, the patient waits an hour or more in the waiting room while a treatable emergency progresses to a fatal one.

Mistriage is rarely a freestanding malpractice claim, but it is often the first step in a chain of failures that ends in serious harm. The triage note, the vital signs at presentation, and the time-to-physician are the early evidence.

The conditions that account for most ED diagnostic error harm are well known: myocardial infarction, stroke, pulmonary embolism, aortic dissection, subarachnoid hemorrhage, ectopic pregnancy, appendicitis, sepsis, and meningitis. Each has classic presentations and atypical ones.

Atypical presentations are where errors cluster. The diabetic woman with shortness of breath and nausea who has an MI without chest pain. The elderly man with confusion and a slightly off temperature who has bacteremic urosepsis. The young patient with a thunderclap headache that was attributed to migraine but was actually a subarachnoid bleed. Each of these is a known atypical presentation with a documented standard of evaluation. Missed diagnoses in these patterns tend to lead to viable malpractice cases when the chart shows the warning signs were documented but the workup was not done.

For stroke specifically, the door-to-needle target for IV thrombolytics in eligible patients is 60 minutes from arrival. For STEMI, the door-to-balloon time for primary PCI is 90 minutes. Documented delays to time-sensitive treatments are particularly visible to a jury.

An ED case that ends with the patient discharged and returning hours or days later in extremis is a recurring pattern. The original visit documented the symptoms, the team ran some workup, the workup was negative or equivocal, and the patient was sent home. The patient returned, often through EMS, much sicker.

Plaintiff-side review of these cases focuses on whether the original workup was adequate, whether the discharge instructions were appropriate to the differential diagnosis still on the table, and whether the disposition decision was reasonable given the patient's presentation. A return visit within 72 hours is sometimes called a "bounce-back" and is a recognized quality indicator.

The Emergency Medical Treatment and Labor Act (42 U.S.C. § 1395dd) requires Medicare-participating hospitals with emergency departments to provide an appropriate medical screening examination to every individual who presents seeking emergency care, regardless of ability to pay, and to stabilize any emergency medical condition before transfer or discharge.

EMTALA violations create a federal cause of action separate from state malpractice claims. The plaintiff does not have to prove negligence in the traditional sense; the plaintiff has to prove that the screening exam was inadequate or that the patient was transferred or discharged in unstable condition. EMTALA claims have a two-year statute of limitations under federal law (42 U.S.C. § 1395dd(d)(2)(C)).

EMTALA is most commonly invoked in cases involving uninsured patients, patients in psychiatric crisis, and labor patients sent to other facilities. The statute also applies more broadly.

Obtain the complete ED record: triage note, ED physician note, nursing flowsheet, vital signs, all lab and imaging results with timestamps, discharge instructions, and the EHR audit trail showing when results came back and who reviewed them.

Identify what the standard workup for the chief complaint would have been. ED standards are well-defined in specialty society guidelines (ACEP) and ED-specific clinical pathways. The expert (typically an emergency medicine physician) explains what should have happened and what did.

Establish causation: would proper workup have led to earlier diagnosis, and would earlier diagnosis have changed the outcome? Subspecialty experts (cardiology, neurology, infectious disease) often provide the causation testimony.