A 62-year-old male with underlying COPD develops a viral upper respiratory infection and begins taking an over-the-counter decongestant. Sholy thereafter he experiences palpitations and presents to the emergency room, where the given rhythm strip is obtained, demonstrating:: (A) Junctional tachycardia, (B) Atrial flutter, (C) Paroxysmal atrial tachycardia, (D) Complete hea block
Answer is B. ECG reveals saw tooth waves of atrial flutter with variable AV block.