What is the principle of percussion?
A) To assess the sound created by the body
B) To strike the abdominal wall with a soft object
C) To create sound over dead spaces in the body
D) To create vibration in a body wall
Ans: D
Feedback: The principle of percussion is to set the chest wall or abdominal wall into vibration by striking it with a firm object. Options A, B, and C are incorrect because they are not considered the principle of percussion.
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