The physician would provide the client who had a surgical procedure with optimal pain relief when discontinuing the morphine sulfate intravenously (IV) by "administering an equianalgesic dose".
The term "aquianalgesic dosage" refers to the dose where the two opioids (during the steady state) produce roughly the same pain alleviation. For example, 10 mg of parenteral morphine would offer the same analgesic effect as 25 mg of morphine administered orally (at the steady state). Another example is that 2 mg of intravenous hydromorphone delivers roughly the same amount of pain relief as 25 mg of oral morphine.
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