The nurse is monitoring a patient in the postanesthesia care unit (PACU) following a coronary artery bypass graft, observing a regular ventricular rate of 82 beats/min and "sawtooth" P waves with an atrial rate of approximately 300 beat/min. How does the nurse interpret this rhythm?
a) Ventricular fibrillation
b) Atrial fibrillation
c) Ventricular tachycardia
d) Atrial flutter
Answer: d) Atrial flutter
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