The physician writes an order for diphenhydramine 250 mg PRN for sleep. Which part of the order does the nurse question?

250 mg. The standard range for diphenhydramine, commonly known as Benadryl, is between 25 and 50 mg. In treating Parkinsonism, a dose of 100 mg is acceptable. A dose of 250 mg is beyond the effective dosage range and is likely a mistake. There is some question as to whether diphenhydramine should be used for sleep, but sleep is still an acceptable indication for the medication.

The physician writes an order for diphenhydramine 250 mg PRN for ...

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Pharmacological and Parenteral Therapies
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Category: Pharmacological and Parenteral Therapies
Difficulty: 6

Topics: Neurology Communication & Documentation Delegation, Prioritization and Leadership Health Care Quality Intracranial Regulation Medication and Blood Products Routes of Administration

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