Which order is a PRN order for nausea?

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Multiple Choice

Which order is a PRN order for nausea?

Explanation:
PRN means “as needed”—a dose given only when the patient has symptoms that the medicine is meant to treat. For nausea, you want an antiemetic that is specifically ordered to be used when the patient feels nauseated. The antiemetic option fits this: promethazine is prescribed IV every 3 to 6 hours as needed for nausea, so it’s used only when nausea occurs, matching the PRN concept. The other options aren’t PRN treatments for nausea. One is a fixed-schedule daily aspirin, which isn’t tied to nausea. Another is daily vitamin D, and the last is an antibiotic given on a fixed schedule, not for nausea.

PRN means “as needed”—a dose given only when the patient has symptoms that the medicine is meant to treat. For nausea, you want an antiemetic that is specifically ordered to be used when the patient feels nauseated. The antiemetic option fits this: promethazine is prescribed IV every 3 to 6 hours as needed for nausea, so it’s used only when nausea occurs, matching the PRN concept.

The other options aren’t PRN treatments for nausea. One is a fixed-schedule daily aspirin, which isn’t tied to nausea. Another is daily vitamin D, and the last is an antibiotic given on a fixed schedule, not for nausea.

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