Different leads used in electrocardiography (Column X) and the electrode placement and connections (Column Y) are listed below:
|
Column X |
Column Y |
||
|
ECG leads |
Electrode placement and connections |
||
|
a. |
Standard limb lead I |
i. |
Left leg - positive |
|
b. |
Standard limb lead II |
ii. |
Left leg - positive |
|
c. |
Standard limb lead III |
iii. |
Right arm - positive, |
|
d. |
Augmented limb lead aVR |
iv. |
Left arm - positive |
Which one of the following options represents the correct match between Column X and Column Y?
1
a - i, b - ii, c - iii, d - iv
2
a - ii, b - iii, c - iv, d - i
3
a - iii, b - iv, c - i, d - ii
4
a - iv, b - i, c - ii, d - iii