Antihistamines : H 1- and H 2-Blockers


Case Synopsis

A 90-year-old man with a past medical history of multiinfarct dementia presented with hematuria and is found to be confused and agitated in the postanesthesia care unit after cystourethroscopy. The patient received midazolam preoperatively, fentanyl and propofol on induction, and 50 mg of diphenhydramine after an episode of erythema.

Acknowledgment

This author wishes to acknowledge Drs. Habibi and Riley for contributions to the chapter in the previous edition of this book.

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