What should the examiner do during auscultation of breath sounds?

A) Listen with the bell of the stethoscope.
B) Compare sounds on the left and right sides.
C) Listen only to the posterior chest for adventitious sounds.
D) Instruct the patient to breathe in and out through the nose.

The examiner should auscultate the lungs from side to side to compare the breath sounds. The diaphragm of the stethoscope is used to assess lung sounds. The patient should be instructed to take deep breaths through the mouth during auscultation. Breath sounds should be auscultated on the anterior, lateral, and posterior chest.