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? (Select all that apply.)

The diaphragm of the stethoscope is used for low-pitched sounds.

The binaural should fit snugly in the ears.

Short tubing provides the listener with the most accurate sounds.

The bell of the stethoscope is used for high-pitched sounds, such as lung sounds.

The stethoscope works by blocking out environmental sounds.