JAMA Internal Medicine

Postexercise Cardiac Asystole

This case report describes a patient in their 40s with hypertension who exhibited presyncopal symptoms following an exercise test.

ST-Segment Elevation in a Woman With Out-of-Hospital Cardiac Arrest

This case report describes a patient in their mid 70s who had an out-of-hospital cardiac arrest and was found to have irregular, narrow atrial fibrillation with rapid ventricular rhythm on electrocardiography imaging.

Opioid-Induced Adrenal Insufficiency

This case report describes a woman in her 40s with opioid use disorder receiving methadone who was admitted for extended antibiotic treatment for methicillin-resistant Staphylococcus aureus bacteremia and was subsequently diagnosed with opioid-induced adrenal insufficiency.