<prompt> In a standard Electrocardiogram, an augmented limb lead measures the electrical potential difference betweenTwo limbsOne limb and two other limbsOne limb and neutral ZeroTwo limbs and two other limbs  <response>: Augmented limb leads are recordings between one limb and the other two limbs Augmented limb leads, designated by the letter a aVR, aVL, aVF, are generally used Ref: Ganongs Review of Medical Physiology Twenty-Third Edition Page No:495 aVR: bw right arm electrodeand left armleft leg-electrode aVL: bw the left armelectrodes and right armleft leg-electrode aVF: bw the left foot electrodeand right armleft arm-electrode Vector of augmented limb lead32 vector of unaugmented limb lead. 