What is normal QRS?

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Multiple Choice

What is normal QRS?

Explanation:
QRS duration reflects how long ventricular depolarization takes. A normal QRS duration is under 120 milliseconds, meaning the impulse travels through the ventricles promptly. If the QRS lasts longer than 120 ms, that indicates a intraventricular conduction delay, such as a bundle branch block or other delay in ventricular activation. From the given options, the one that stays below this common upper limit is the correct choice.

QRS duration reflects how long ventricular depolarization takes. A normal QRS duration is under 120 milliseconds, meaning the impulse travels through the ventricles promptly. If the QRS lasts longer than 120 ms, that indicates a intraventricular conduction delay, such as a bundle branch block or other delay in ventricular activation. From the given options, the one that stays below this common upper limit is the correct choice.

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