What is the Q wave?
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Charlotte Wilson
Studied at the University of Johannesburg, Lives in Johannesburg, South Africa.
As a medical professional with expertise in cardiology, I can explain the Q wave. In an electrocardiogram (ECG or EKG), the Q wave represents the initial rapid depolarization of the ventricles, which are the lower chambers of the heart. Normally, a Q wave is small and narrow, but it can become more prominent under certain conditions.
The presence of a Q wave can be significant in diagnosing various heart conditions. For instance, a Q wave that is too deep or too wide can indicate a previous heart attack, as the dead tissue in the heart (infarcted tissue) does not depolarize, leading to a loss of the R wave and a more prominent Q wave in the ECG. However, it's important to note that the presence of a Q wave alone is not diagnostic of a heart attack; it must be evaluated within the context of the entire ECG pattern and the patient's clinical history.
Studied at University of California, Berkeley, Lives in San Francisco. Entrepreneur passionate about technology and innovation.
By definition, a Q wave on the electrocardiogram (ECG) is an initially negative deflection of the QRS complex. Technically, a Q wave indicates that the net direction of early ventricular depolarization (QRS) electrical forces projects toward the negative pole of the lead axis in question.
2017-4-3
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Harper Taylor
QuesHub.com delivers expert answers and knowledge to you.
By definition, a Q wave on the electrocardiogram (ECG) is an initially negative deflection of the QRS complex. Technically, a Q wave indicates that the net direction of early ventricular depolarization (QRS) electrical forces projects toward the negative pole of the lead axis in question.
