The answer to this question would be nine quadrants
Auscultating is an examination where you put stethoscope into the patient chest and try to hear their breathing/heart sound. The lung is a big organ but contains multiple lobes, so when there is an abnormality in a part the sound might not be heard in the other lobes.
It is important to auscultate the lung into at least 9 quadrants so you won't miss it.
