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    Hesi rn medical surgical proctored exam (cardiac)

    Based on this rhythm strip, which interpretation should the nurse make?

    Explanation & Rationale

    A. Normal sinus rhythm: A normal sinus rhythm has a heart rate between 60 and 100 beats/minute. This strip shows a rate well below 60. B. Idioventricular rhythm: An idioventricular rhythm originates in the ventricles, resulting in absent P waves and wide QRS complexes, typically with a very slow rate (20-40 bpm). This strip has narrow QRS complexes and visible P waves. C. Junctional rhythm: A junctional rhythm originates in the AV node, resulting in absent, inverted, or hidden P waves (occurring before, during, or after the QRS complex), with a heart rate between 40-60 bpm. This strip shows upright P waves preceding each QRS. D. Sinus bradycardia rhythm: This rhythm originates in the SA node (indicated by normal P waves before each QRS) but with a heart rate slower than 60 beats/minute which is evident from the long R-R intervals.

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