A 41-year-old woman arrives after a suspected overdose. Triage acuity is ESI 1; BP 82/48 mm Hg, HR 142/min, pupils dilated, skin dry. ECG shows QRS

Question

A 41-year-old woman arrives after a suspected overdose. Triage acuity is ESI 1; BP 82/48 mm Hg, HR 142/min, pupils dilated, skin dry. ECG shows QRS duration 148 ms and a terminal R wave in aVR. She has a generalized seizure in the ED. Which of the following is the most likely diagnosis?

Accepted Answer

Tricyclic antidepressant toxicity

Answer

SSRI serotonin syndrome

Answer

Beta-blocker overdose

Answer

Lithium toxicity

Answer

Organophosphate poisoning

Tricyclic antidepressant overdose — ABEM Board MCQ

A 41-year-old woman arrives after a suspected overdose. Triage acuity is ESI 1; BP 82/48 mm Hg, HR 142/min, pupils dilated, skin dry. ECG shows QRS duration 148 ms and a terminal R wave in aVR. She has a generalized seizure in the ED. Which of the following is the most likely diagnosis?