The nurse is preparing to use a stethoscope for auscultation. Which statement is true regarding the diaphragm of the stethoscope? The diaphragm:


a.
Is used to listen for high-pitched sounds.
b.
Is used to listen for low-pitched sounds.
c.
Should be lightly held against the persons skin to block out low-pitched sounds.
d.
Should be lightly held against the persons skin to listen for extra heart sounds and murmurs.