Lead II uses which electrode pair for the ECG?

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Multiple Choice

Lead II uses which electrode pair for the ECG?

Lead II is formed by using the Right Arm and Left Leg electrodes, with the Left Leg as the positive end and the Right Arm as the negative end. This arrangement measures the heart’s electrical activity along the axis from the upper right to the lower left, which is why Lead II is a go-to choice for rhythm monitoring. The pair described — Left Leg and Right Arm — is exactly this configuration (the order of the pair doesn’t matter). The other potential pairings don’t correspond to Lead II’s RA-to-LL setup.

Lead II is formed by using the Right Arm and Left Leg electrodes, with the Left Leg as the positive end and the Right Arm as the negative end. This arrangement measures the heart’s electrical activity along the axis from the upper right to the lower left, which is why Lead II is a go-to choice for rhythm monitoring. The pair described — Left Leg and Right Arm — is exactly this configuration (the order of the pair doesn’t matter). The other potential pairings don’t correspond to Lead II’s RA-to-LL setup.

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