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Q. |
The number of leads necessary for an ECG is |
A. | 3 |
B. | 6 |
C. | 12 |
D. | 24 |
Answer» A. 3 | |
Explanation: To have an ECG, the number of leads necessarily needed is 3. These three leads are placed on the four limbs in various combinations to derive the ECG. A 12 lead ECG is used for a greater in-depth analysis. It is used while taking a treadmill test. |
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