Which Assessment Finding Leads the Nurse to Add Risk for Poisoning

Which assessment finding leads the nurse to add risk for poisoning to the patient's care plan?

A) The patient takes alprazolam 0.25 mg every 8 hours.
B) The patient rinses with a fluoride mouthwash after brushing the teeth.
C) The patient takes acetaminophen 1000 mg every 4 hours around the clock.
D) The patient frequently uses an alcohol-based sanitizer for hand hygiene.