An EKG strip shows a QT interval measured from the beginning of the Q wave to the end of the T wave that spans 9 small squares. Using the standard conversion factor that each small square represents 0.04 seconds, determine the QT interval duration.

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TheoryPractice · Accepted Answer

0.36 seconds. Answer: 0.36 seconds The QT interval is determined by counting the small squares between the beginning of the Q wave and the end of the T wave. With 9 small squares, the duration is calculated as 9 x 0.04 = 0.36 seconds.

An EKG strip shows a QT interval measured from the beginning of the Q wave to the end of the T wave that spans 9 small squares. Using the standard conversion factor that each small square represents 0.04 seconds, determine the QT interval duration.

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