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Q.

QRS complex in an ECG cannot be related to

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a

determining the heart rate

b

ventricular diastole

c

ventricular systole

d

electrical activity in ventricular conducting system

answer is C.

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Detailed Solution

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Ventricular diastole begins after T-wave.

The QRS complex represents rapid ventricular depolarisation, as the action potential spreads through ventricular contractile fibers. Number of heartbeats can be calculated by counting the number of QRS complexes. 

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QRS complex in an ECG cannot be related to