Question

Normal interval time for the QRS complex is:

A) 0.04-0.12 second.

B) 0.33-0.42 second.

C) 0.12-0.20 second.

D) 1.20-2.00 seconds.

Answer 1

A) 0.04-0.12 seconds.

Step-by-step explanation:

The normal interval time for the QRS complex is A) 0.04-0.12 seconds.

The QRS complex is a part of an electrocardiogram (ECG) that represents the depolarization of the ventricles of the heart. It is measured from the beginning of the Q wave to the end of the S wave.

The duration of the QRS complex can vary depending on various factors, such as age, heart rate, and individual differences. However, in a normal healthy adult, the typical duration of the QRS complex falls within the range of 0.04 to 0.12 seconds.

Therefore, the correct answer is A) 0.04-0.12 seconds.

Answer 2

The normal interval time for the QRS complex is 0.04-0.12 second.

Step-by-step explanation:

The normal interval time for the QRS complex is 0.04-0.12 second (option A). The QRS complex represents the depolarization of the ventricles in the heart, which is responsible for the contraction of the ventricles. It includes the repolarization of the atria as well. This interval is measured from the beginning of the Q wave (or R wave if the Q wave is not visible) to the end of the S wave.