Which of the following is QT interval?
Ans. (b) QT intervalPR interval (A)120-200msec and represents spread of impulse from SAN to AV nodeRR interval (C)Inversely related to heart rateQT interval (B)400-430 msec and represents ventricular depolarization and repolarization.
A
B
C
D
Heart: Normal Electrocardiogram