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 produced ...
My rationale for beginning at the mitral area is to compare the auscultatory findings with those previously obtained by percussion and palpation (see Nonauscultatory Cardiac Exam: Assessing the ...
An S4 heart sound cannot be present during atrial fibrillation (atrial kick is required). An S3 heart sound cannot be present in the setting of severe mitral stenosis. An S3 heart sound can be present ...
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