The nurse caring for patients on cardiac monitors assesses the patient with a prolonged QT interval for
A) electrolyte disturbances such as hypokalemia.
B) symptomatic bradycardias.
C) the development of lethal dysrhythmias.
D) difficulty maintaining the blood pressure.

Question

Quizplus · Accepted Answer

The QT interval is measured from the beginning of the QRS complex to the end of the T wave.This interval measures the total time taken for ventricular depolarization and repolarization.Abnormal prolongation of the QT interval increases vulnerability to lethal dysrhythmias,such as ventricular tachycardia and fibrillation.The nurse monitors the patient for the development of these rhythms and is prepared to intervene should they occur.A prolonged QT is not associated with bradycardias,hypokalemia,or blood pressure irregularities.

The Nurse Caring for Patients on Cardiac Monitors Assesses the Patient