Which phase of the ECG indicates ventricular excitation and contraction?
A) P wave
B) QRS wave
C) T wave
D) U wave
E) I wave

Question

Quizplus · Accepted Answer

The QRS wave indicates ventricular excitation and contraction. The P wave indicates atrial excitation, the T wave indicates ventricular repolarization, and the U wave is not consistently present or well understood. The I wave is not a recognized wave on the ECG.

Which Phase of the ECG Indicates Ventricular Excitation and Contraction