Atrial waveforms

A. The atrial waveforms associated with atrial fibrillation are __________ and

the PR intervals are __________.

a. referred to as saw toothed; variable

b. indiscernible; nonexistent

c. inverted; less than 0.12 seconds

d. dissociated; between 0.12 and 0.20 seconds

B.  Which dysrhythmia is totally irregular?

a. Sinus bradycardia

b. 3rd-degree AV heart block

c. Ventricular tachycardia

d. Atrial fibrillation

C.  Atrial fibrillation has an atrial rate of __________ beats per minute.

a. between 40 and 60

b. between 100 and 150

c. between 250 and 350

d. greater than 350

D.  What dysrhythmia is the patient experiencing?

a. Accelerated junctional

b. Atrial fibrillation

c. Atrial flutter

d. Ventricular tachycardia

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