First Heart Sound - Decreased Intensity Reference Guide.
First Heart Sound - Decreased IntensityA decreased intensity first heart sound can be produced by various heart abnormalities, such as a viral infection of the heart called a cardiomyopathy. Other conditions include a previous heart attack and decreased thyroid function. The decreased intensity first heart sound is due to a decrease in the vigor of contraction of the left ventricle. See the anatomy video.
Auscultation Sound From Lesson
The patient's position should be supine.
Listening TipsS1: Reduced intensity
First Heart Sound - Decreased Intensity - Reference Pag