What does ventricular repolarisation in the T wave mean? Is it before the ventricles relax or when it already enters a diastole? Help me please

Question

deepika.comet · Answer

Actually im not good at this topic but got this when studied about it on google..!!

The T wave is positive. This is due to the repolarization of the membrane. During ventricle contraction (QRS wave), the heart depolarizes. Repolarization of the ventricle happens in the opposite direction of depolarization and is negative current. This double negative (direction and charge) is why the T wave is positive; although the cell becomes more negatively charged, the net effect is in the positive direction, and the ECG reports this as a positive spike.

deepika.comet · Answer

And also found this..!!

In electrocardiography, the T wave represents the repolarization (or recovery) of the ventricles. The interval from the beginning of the QRS complex to the apex of the T wave is referred to as the absolute refractory period. The last half of the T wave is referred to as the relative refractory period (or vulnerable period). The T wave contains more information than the QT interval. The T wave can be described by its symmetry, skewness, slope of ascending and descending limbs, amplitude and subintervals like the Tpeak–Tend interval.

xanthe · Answer

tx alot!