A group of new nurses is going to work on the telemetry unit. They are taking a class on ECGs and arrhythmias. What would the staff educator tell this class about ST segments?
A) The part of an ECG that reflects repolarization of the ventricles
B) The part of an ECG used to calculate ventricular rate and rhythm
C) The part of an ECG that reflects the time from ventricular depolarization through repolarization
D) The part of an ECG that reflects the end of the QRS complex to the beginning of the T wave
Ans: D
Feedback: ST segment is the part of an ECG that reflects the end of the QRS complex to the beginning of the T wave. The part of an ECG that reflects repolarization of the ventricles is the T wave. The part of an ECG used to calculate ventricular rate and rhythm is the RR interval. The part of an ECG that reflects the time from ventricular depolarization through repolarization is the QT interval.
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