| Column-I | Column-II | ||
| [a] | P - wave | (i) | Depolarisation of ventricles |
| [b] | QRS complex | (ii) | Repolarisation of ventricles |
| [c] | T - wave | (iii) | Coronary ischemia |
| [d] | Reduction in the size of T-wave | (iv) | Depolarisation of atria |
| (v) | Repolarisation of atria |
A)
\[[a]\to (iv)\]
\[[b]\to (i)\]
\[[c]\to (ii)\]
\[[d]\to (iii)\]
B)
\[[a]\to (iv)\]
\[[b]\to (i)\]
\[[c]\to (ii)\]
\[[d]\to (v)\]
C)
\[[a]\to (ii)\]
\[[b]\to (i)\]
\[[c]\to (v)\]
\[[d]\to (iii)\]
D)
\[[a]\to (ii)\]
\[[b]\to (iii)\]
\[[c]\to (v)\]
\[[d]\to (iv)\]
Correct Answer: A
Solution :
In ECG P-wave represents depolarisation of atria QRS complex represents depolarisation of ventricles T-wave represents repolarisation of ventricle ,... return from excited to normal state. Reduction in the size of T-wave ... if the T-wave represents insufficient supply of oxygen i.e. coronary ischaemia.
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