The nurse is assessing a client who has had a myocardial infarction. The nurse notes the cardiac rhythm shown below. The nurse identifies that this rhythm is: 1. Atrial fibrillation. 2. Ventricular...

The nurse is assessing a client who has had a myocardial infarction. The nurse notes the cardiac rhythm shown below. The nurse identifies that this rhythm is:

1. Atrial fibrillation.

2. Ventricular tachycardia.

3. Premature ventricular contractions.

4. Third-degree heart block.