NCIt definition : An augmented unipolar electrocardiogram limb lead in which the positive (black) electrode
is situated on the left thoracic limb and the negative electrode is a combination
of the right thoracic limb (white) electrode and the left pelvic limb (red) electrode.
Measures the electrical activity of the electrode on the left thoracic limb.;
Alternative definition : CDISC: An augmented unipolar electrocardiogram limb lead in which the positive (black)
electrode is situated on the left thoracic limb and the negative electrode is a combination
of the right thoracic limb (white) electrode and the left pelvic limb (red) electrode.
Measures the electrical activity of the electrode on the left thoracic limb. (NCI);