this should be voted as the best place to live on earth!!
@user-mf5bm7gg5o6 күн бұрын
correct
@user-mf5bm7gg5o8 күн бұрын
QT interval is a measurement made on an electrocardiogram used to assess some of the electrical properties of the heart. It is calculated as the time from the start of the Q wave to the end of the T wave, and approximates to the time taken from when the cardiac ventricles start to contract to when they finish relaxing