S3 (gallop) is an abnormal heart sound ... A stethoscope is used to listen to heart sounds. It has two earpieces connected by tubing to a chest piece with two sides. One side of the chest piece ...

The third heart sound (S3), also known as the "ventricular gallop," occurs just after S2 when the mitral valve opens allowing passive filling of the left ventricle. The S3 sound is actually ...

An S3 heart sound cannot be present in the setting of ... of aortic regurgitation is to have the patient lean forward and listen after a forced, held expiration. As aortic regurgitation worsens ...