The Nurse Is Teaching a Group of Unlicensed Assistive Personnel

The nurse is teaching a group of unlicensed assistive personnel about the stethoscope. Which statements about the stethoscope are appropriate for the nurse to include in the teaching session?

A) The stethoscope works by blocking out environmental sounds.
B) Short tubing provides the listener with the most accurate sounds.
C) The bell of the stethoscope is used for high-pitched sounds, such as lung sounds.
D) Cleaning the stethoscope is not necessary since it is not a vehicle for the spread of infection.
E) The binaurals should fit snugly in the ears.