NCLEX RN Exam Practice Practice Question
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:
Correct Answer: D
Rationale: Third-degree heart block occurs when atrial stimuli are blocked at the atrioventricular junction. Impulses from the atria and ventricles are conducted independently of each other. The atrial rate is 60 to 100 bpm; the ventricular rate is usually 10 to 60 bpm.
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