Percussion must always be:

  • Alternate
    (side to side).
  • Symmetrical
  • Comparative
    • Uses
  • Normal Percussion of the Lungs = Resonance.
  • Organs = Determine span and delineate borders.
  • Diaphragmatic Excursion (normally 3cm to 5 cm).

    • Types
  • Gerhardt (digital-digital)
  • Plesch (Orthopercussion, one middle finger is the pleximeter and the other plexor.)
  • Auenbrugger (direct).