The QT interval is measured from the beginning of the _____.
A) QRS complex to the end of the T wave
B) P wave to the end of the QRS complex
C) QRS complex to the beginning of the T wave
D) P wave to the beginning of the QRS complex

Question

Quizplus · Accepted Answer

The QT interval is measured from the beginning of the QRS complex to the end of the T wave. In the absence of a Q wave, the QT interval is measured from the beginning of the R wave to the end of the T wave. The term QT interval is used regardless of whether the QRS complex begins with a Q or R wave.

The QT Interval Is Measured from the Beginning of the _____