Auscultating (how to listen to heart sounds) heart sounds for assessing S1, S2, S3, and S4 along with heart murmurs. Listening to the heart with a stethoscope is the best way to conduct the heart assessment during a nursing assessment of the cardiovascular system. Auscultation of heart sounds allows the nurse to assess valve closure of the aortic, pulmonic, tricuspid, and mitral (bicuspid) valves. S1 is the closure of the AV valves which are the tricuspid and mitral valves, and S2 is the closure of the SL valves aortic and pulmonic. During the assessment of heart sounds it is important to position the patient correctly to increase sound quality and to be familiar with the heart auscultation sites.
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