MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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AvL
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V3
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V6
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V4
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Detailed explanation-1: -The six precordial leads are called leads V1, V2, V3, V4, V5 and V6.
Detailed explanation-2: -Limb leads are made up of 4 leads placed on the extremities: left and right wrist; left and right ankle. The lead connected to the right ankle is a neutral lead, like you would find in an electric plug. It is there to complete an electrical circuit and plays no role in the ECG itself.
Detailed explanation-3: -aVR, aVL, and aVF are augmented unipolar leads in the frontal plane, after their inventor Dr. Emanuel Goldberger (known collectively as the Goldberger’s leads). They are derived from the same three electrodes as leads I, II, and III with the reference lead on the limb being sensed and disconnected from the other two.