Best NCLEX RN Question Bank Practice Question
The nurse reviewing the electrocardiogram (ECG) rhythm strip of a client with a history of a myocardial infarction (MI) notes that the PR intervals are 0.16 seconds. The nurse should arrive at which interpretation of this assessment data?
Correct Answer: A
Rationale: The PR interval represents the time it takes for the cardiac impulse to spread from the atria to the ventricles. The PR interval range is 0.12 to 0.2 seconds. Therefore, the finding is normal. The remaining options all indicate an abnormal finding, so they are not appropriate responses.
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