An older adult client comes to the emergency department with complaints of confusion. Which recently prescribed medication is most likely responsible for this assessment finding?
1. Lansoprazole (Prevacid)
2. Atorvastatin (Lipitor)
3. Hydroxyzine (Atarax)
4. Amlodipine (Norvasc)
Correct Answer: 3
Rationale 1: Lansoprazole rarely causes confusion.
Rationale 2: Atorvastatin rarely causes confusion. Its major adverse effects are gastrointestinal upset and muscle weakness.
Rationale 3: Hydroxyzine is a sedating antihistamine with significant anticholinergic effects.
Rationale 4: Amlodipine rarely causes confusion. Its major adverse effects are pedal edema and headache.
Global Rationale: Hydroxyzine is a sedating antihistamine with significant anticholinergic effects, which can cause confusion. Lansoprazole rarely causes confusion. Atorvastatin rarely causes confusion. Its major adverse effects are gastrointestinal upset and muscle weakness. Amlodipine rarely causes confusion. Its major adverse effects are pedal edema and headache.
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