A patient with mitral stenosis may also have an opening snap caused by the opening of a diseased valve. This sound
a. occurs early in diastole, following S2.
b. is low pitched.
c. varies with respirations and is localized.
d. is best auscultated with the bell of the stethoscope.
A
An opening snap is an early diastolic sound that is high pitched and is abnormal. An opening snap is caused by the opening of a diseased valve and can be auscultated in mitral stenosis. The sound does not vary with respirations and can radiate throughout the chest. It follows S2 and can be differentiated from an S3 because it occurs earlier than an S3 . Because the sound is high pitched, it is best auscultated with the diaphragm of the stethoscope.
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