A nurse assesses a client's electrocardiograph tracing and observes that not all QRS complexes are preceded by a P wave.How should the nurse interpret this observation?

Question

Quizplus · Accepted Answer

Normal rhythm shows one P wave preceding each QRS complex,indicating that all depolarization is initiated at the sinoatrial node.QRS complexes without a P wave indicate a different source of initiation of depolarization.This finding on an electrocardiograph tracing is not an indication of hyperkalemia,ventricular tachycardia,or disconnection of leads.

A Nurse Assesses a Client's Electrocardiograph Tracing and Observes That