The best way to determine if your patient is having a disturbance in the electrical conduction of the heart, the nurse must first recognize normal sinus rhythm.

 

Characteristics of normal sinus rhythm include:

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• QRS rate: Between 60 and 100 beats per minute

• QRS complex: Is 0.10 seconds or less.

• A P wave is before every QRS complex.

• P wave: Positive/upright, rounded and uniform(all look the same)

• PR interval: Between 0.12 and 0.20 seconds and is constant from beat to beat.