The standard ECG is obtained by connecting the patient to the machine with how many leads?

(1) 4

(2) 3

(3) 1

(4) 2

If one wants to analyse the detailed cardiac activity, the multiple leads are attached to–

(1) Wrist and arms

(2) Abdomen

(3) Chest region

(4) all the fingers

What does the QRS complex represent in ECG?

(1) Atrial Diastole

(2) Atrial systole

(3) ventricular systole

(4) Joint Diastole

What does the T wave represents in ECG?

(1) Atrial Diastole

(2) Atrial systole

(3) ventricular Diastole

(4) Joint Diastole

What does the depolarization of ventricles initiate?

(1) Atrial Diastole

(2) Atrial systole

(3) ventricular systole

(4) Joint Diastole

By counting number of QRS complex, one may get which information?

(1) Rate of breathing

(2) cardiac output

(3) Heart beat rate

(4) stroke volume

The deviation from the characteristic ECG indicates a possible abnormality; this information can be utilized in which field of Biology?

(1) Clinical Biology

(2) Biotechnology

(3) Molecular Biology

(4) Pedigree analysis

Depolarisation and repolarisation actually initiate ___________ in different chambers of heart?

(1) contraction and relaxation

(2) relaxation and contraction

(3) thickening and thinning

(4) thinning and thickening

Three lead configuration of ECG has arrangement?

(1) one to each wrist and one to right ankle.

(2) one to each ankle and one to right wrist.

(3) one to each wrist and one to left ankle

(4) one to each ankle and one to left wrist.

Which wave of ECG represents repolarization?

(1) P wave

(2) QRS complex

(3) ST wave

(4) T wave