Electrocardiogram (ECG) characteristics of atrial fibrillation include which of the following?

Electrocardiogram (ECG) characteristics of atrial fibrillation include which of the following?


a) P wave resent before each QRS
b) Normal PR interval
c) Atrial rate of 300 to 400
d) Regular rhythm


Answer: c) Atrial rate of 300 to 400


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