-The T wave in Figure 4 is
A)inverted.
B)upright.
C)indicative of sinus control of the ventricles.
D)indicative of ventricular depolarization.

Question

-The T wave in Figure 4 is
A)inverted. 
B)upright. 
C)indicative of sinus control of the ventricles. 
D)indicative of ventricular depolarization.

Quizplus · Accepted Answer

The T wave represents ventricular repolarization in an ECG, and when it is described as "upright," it means that the wave is positive or goes upward from the baseline, which is the normal presentation in most ECG leads. This is in contrast to ventricular depolarization, which is represented by the QRS complex, and sinus control of the ventricles, which is indicated by the presence of a preceding P wave for each QRS complex. An inverted T wave could suggest ischemia or other pathological conditions, but that is not what is being described here.

-The T Wave in Figure 4 Is