Match the column - I with Column-II:

select the correct options:

Options

A. A-2, B-3, C-5, D-4
B. A-4, B-1, C-2, D-3
C. A-4, B-1, C-2, D-5
D. A-2, B-1, C-5, D-3

Answer

B

Explanation

In ECG P-wave represents depolarisation of atria. QRS complex represents depolarization of ventricles. T-wave represents repolarisation of ventricle i.e. return from excited to normal state. Reduction in the size of T-wave i.e. if the T-wave represents insufficient supply of oxygen i.e. coronary ischaemia.