Lead Site aVL-Axial

**Semantic type:** Spatial Concept

**Definition:** An augmented unipolar electrocardiogram limb lead in which the positive electrode is near the apex of the heart (located in the ICS of left 5-6 rib close to the sternum) and the negative electrode is a combination of the electrode behind the right ear near the right mastoid process and the electrode on hindquarters proximal to the sacrum. (CDISC)

**Synonyms:** - LEAD aVL-AXIAL