Q.

The QRS complex in a standard ECG represents

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a

repolarisation of ventricles

b

repolarisation of auricles

c

depolarisation of auricles

d

depolarisation of ventricles

answer is B.

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Detailed Solution

One QRS complex in a standard ECG represents depolarisation of ventricles. By counting the number of QRS complexes we can calculate the heart rate.

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The QRS complex in a standard ECG represents