AON Assessment Practice Test

Indirect percussion is characterized by the technique of striking a finger or hand that is positioned on the body’s surface; this allows for the generation of sound waves produced by the underlying structures. This method enables the examiner to assess the density and size of internal organs, as variations in pitch and quality of sound can indicate different tissue types or abnormalities.

In this approach, the examiner's fingers act as a mediator, detecting the vibrations created by the percussion, which provides valuable clinical information. It contrasts with direct percussion, where the body surface is struck directly, allowing for a different assessment dynamic.

The other options, while they mention various aspects of percussion techniques, do not accurately describe the essential feature of indirect percussion. Only option B correctly identifies the involvement of a finger or hand and their placement over a body surface as key components of the indirect percussion method.