Question

The nurse is reviewing an electrocardiogram rhythm strip. The P waves and QRS complexes are regular. The PR interval is 0.16 second, and QRS complexes measure 0.06 second. The overall heart rate is 64 beats/minute. Which would be a correct interpretation based on these characteristics?

1.Sinus bradycardia
2.Sick sinus syndrome
3.Normal sinus rhythm
4.First-degree heart block

Answer 1

The correct interpretation of the given ECG characteristics is normal sinus rhythm.

Step-by-step explanation:

Based on the given characteristics, the correct interpretation would be: 3. Normal sinus rhythm.

In normal sinus rhythm, the P waves are regular and followed by regular QRS complexes. The PR interval of 0.16 second is within the normal range of 0.12 to 0.20 second, indicating normal conduction from the sinoatrial (SA) node to the atrioventricular (AV) node.

The heart rate of 64 beats/minute is also within the normal range for adults, which is typically between 60-100 beats/minute.