Question

Which of the following statements concerning Q waves on the ECG is most accurate?

A) Q waves are not a normal finding on the ECG.

B) The absence of a Q wave is a significant pathophysiological finding.

C) A Q wave is significant if it is 0.04 or more seconds wide.

D) A Q wave is only significant in the presence of chest pain.

Answer 1

The most accurate statement concerning Q waves on the ECG is that they are not a normal finding and can indicate damage to the heart muscles.

Step-by-step explanation:

The most accurate statement concerning Q waves on the ECG is option A) Q waves are not a normal finding on the ECG.

Q waves generally indicate damage to the heart muscles, such as from a myocardial infarction (MI) or heart attack. They are characterized by negative deflections on the ECG.

While the absence of a Q wave can be significant in certain cases, Q waves themselves are not normal findings and can indicate underlying cardiac issues.