The technique in which the patient self-administers small doses of a pain medication (usually an opioid)at relatively frequent intervals to provide optimal pain relief is known as:

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Patient-controlled analgesia (PCA) is a technique in which the patient self-administers small doses of a pain medication (usually an opioid) at relatively frequent intervals to provide optimal pain relief. The patient has control over the amount and frequency of the medication, but there are built-in safety mechanisms to prevent overdoses. PCA has been shown to be effective in managing postoperative pain, cancer pain, and other types of pain.

The Technique in Which the Patient Self-Administers Small Doses of a Pain