What does percussion involve during a medical exam?

Percussion during a medical exam involves tapping various body parts to assess their underlying structures. This technique helps healthcare providers evaluate the condition of organs, fluids, and other tissues beneath the skin. By tapping different areas, the provider can listen to the sounds produced, which vary depending on whether the underlying structures are solid, fluid-filled, or air-filled. The resonance and pitch of the sounds provide valuable information about potential abnormalities, such as fluid in the lungs or enlargement of organs. This auditory data assists in forming a diagnosis and guiding further examinations or interventions.

The other options involve different examination techniques: feeling body parts refers to palpation, holding a needle pertains to injections or blood draws, and examining the ear relates to otoscopy. Each has its unique role in a medical assessment but does not represent percussion techniques.