(FIT)-Module 4 Workshop 7: Electrocradiogrpahic and Electrophysiological Correlations, Atrial Fibrillation, Clinical Scenarios and Syndromes-Poole Case 4 Question

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Video Summary

A 66-year-old male with a history of sinus node dysfunction, hypertension, depression, and opioid abuse experiences dizziness after taking over-the-counter meds for stomach upset and diarrhea during a vacation in Mexico. His potassium level is 3.2, and an ECG reveals abnormal findings. The question asks which medication likely caused the ECG changes, with options: A. Diphenhydramine, B. Loperamide, C. Dimenhydrinate, D. Calcium Carbonate. Given his medical history and symptoms, the likely culprit is Loperamide, known to cause cardiac issues when taken in large doses.

Keywords

sinus node dysfunction

hypokalemia

loperamide

ECG changes

cardiac toxicity