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Percussion

Percussion is a method of tapping body parts with fingers, hands, or small instruments as part of a physical examination. It is done to determine:

  • The size, consistency, and borders of body organs
  • The presence or absence of fluid in body areas

Percussion of a body part produces a sound, like playing a drum. The sound is a sign of the type of tissue within the body part or organ.

  • Lungs sound hollow on percussion because they are filled with air.
  • Bones, joints, and solid organs such as the liver sound solid.
  • The abdomen sounds like a hollow organ filled with air, fluid, or solids.

References

Swartz MH. The physical examination. In: Swartz MH, ed. Textbook of Physical Diagnosis. 7th ed. Philadelphia, PA: Elsevier Saunders; 2014:chap 4.

  • Percussion

    Percussion - illustration

    Percussion is a method of tapping on body parts during a physical examination with fingers, hands, or small instruments to evaluate the size, consistency, borders and presence or absence of fluid in body organs.

    Percussion

    illustration

    • Percussion

      Percussion - illustration

      Percussion is a method of tapping on body parts during a physical examination with fingers, hands, or small instruments to evaluate the size, consistency, borders and presence or absence of fluid in body organs.

      Percussion

      illustration

     

    Review Date: 2/7/2019

    Reviewed By: Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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