PCA

Definition / meaning of PCA

A method of pain relief in which the patient controls the amount of pain medicine that is used. When pain relief is needed, the person can receive a preset dose of pain medicine by pressing a button on a computerized pump that is connected to a small tube in the body. Also called patient-controlled analgesia.

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Find More About 'PCA'

Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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