Definition Auscultatory Zones Aortic: RUSB (right upper sternal border) Pulmonic: LUSB (left upper sternal border) Tricuspid: 4LICS (4th left intercostal space), on the sternal border Mitral: 5 LICS (5th left intercostal space), several cm lateral to the 4LICS Apex Beat Located anywhere from the 4th to 5th intercostal space, 6-10 cm lateral to midline Borders […]