You have performed an ECG on a 68-year-old man and you quickly identify the rhythm as atrial fibrillation. The patient's heart rate is 192 and he appears pale and unresponsive. You inform the physician immediately because you know that the first treatment goal for this patient is to:

A. perform CPR.
B. restore consciousness.
C. attempt cardioversion.
D. slow the heart rate.


Answer: D

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