When the nurse is performing indirect percussion,the middle finger of the dominant hand,known as the plexor

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With indirect percussion the finger of one hand acts as the hammer (plexor)and a finger of the other hand acts as the striking surface.Place the nondominant hand lightly on the surface to be percussed.Extend the middle finger of this hand,known as the pleximeter,and press its distal phalanx and distal interphalangeal joint firmly on the location where percussion is to begin.Spread the other fingers of the nondominant hand apart and raise them slightly off the surface.Flex the middle finger of the dominant hand,called the plexor.The other fingers on this hand should be fanned.Flex the wrist of the dominant hand and place the hand directly over the pleximeter finger of the nondominant hand.With a sharp,crisp,rapid movement from the wrist of the dominant hand,strike the pleximeter with the plexor.The blow to the pleximeter should be between the distal interphalangeal joint and the fingernail.Use the finger pad rather than the fingertip of the plexor to deliver the blow.As soon as the plexor strikes the pleximeter,withdraw the plexor to avoid dampening the resulting vibrations.Note the sound produced from the percussion.

When the Nurse Is Performing Indirect Percussion,the Middle Finger of the Dominant