A 45-year-old woman with weight loss, tremor, and palpitations is found to have Graves disease. She presents with new-onset atrial fibrillation with r...

Question

A 45-year-old woman with weight loss, tremor, and palpitations is found to have Graves disease. She presents with new-onset atrial fibrillation with rapid ventricular response (heart rate 150 beats/min) and no haemodynamic instability. According to good practice, what is the most appropriate immediate pharmacologic management?

Accepted Answer

Start a beta-blocker such as propranolol

Answer

Start amiodarone for rhythm control

Answer

Cardioversion in the emergency department

Answer

Start warfarin immediately without addressing rate

Answer

Start an ACE inhibitor

ca-mccqe1 MCQ (SBA): Thyrotoxic atrial fibrillation