Benefits of patient-controlled analgesia (PCA)include which of the following?

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PCA is an approach to postoperative pain management that allows clients to self-administer pain medication by pushing a button on a PCA pump.The pump is programmed to deliver a specific dose of morphine or meperidine (Demerol)when the client presses the button,within preset limits.Providing the client with control over the delivery of pain medication reduces the time between perceived need for pain medication and its administration and also provides more effective pain relief than that obtained from intermittent injections.

Benefits of Patient-Controlled Analgesia (PCA)include Which of the Following