Answer to Question 1
Correct Answer: 3
Rationale 1: Phenytoin (Dilantin) does not cause increased sensitivity to sunlight. Its major adverse effects are sedation and ataxia.
Rationale 2: Cyclobenzaprine (Flexeril) does not cause increased sensitivity to sunlight. Its major adverse effects are sedation, confusion, and anticholinergic effects.
Rationale 3: Naproxin (Aleve) can cause an increase in sensitivity to sunlight.
Rationale 4: Alprazolam (Xanax) does not cause increased sensitivity to sunlight. Its major adverse effect is sedation.
Global Rationale: Naproxin (Aleve) can cause an increase in sensitivity to sunlight. Phenytoin (Dilantin) does not cause increased sensitivity to sunlight. Its major adverse effects are sedation and ataxia. Cyclobenzaprine (Flexeril) does not cause increased sensitivity to sunlight. Its major adverse effects are sedation, confusion, and anticholinergic effects. Alprazolam (Xanax) does not cause increased sensitivity to sunlight. Its major adverse effect is sedation.
Answer to Question 2
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.