Strategies to prevent misuse of prescription drugs include:

Correct Answer: D

Rationale: Choice D is correct because PDMPs track dispensing, education deters misuse, and lowest doses minimize excess—all proven prevention methods. Choice A is incorrect alone as it's one tool. Choice B is wrong by itself because education is just part. Choice C is incorrect solo since dosing is only one strategy.

Correct Answer: B

Rationale: Choice B is correct because restricted distribution (e.g., REMS) is primarily for drugs with serious safety risks (e.g., thalidomide), not cost or supply alone. Choice A is incorrect as cost doesn't mandate restriction—insurance handles that. Choice C is wrong because limited supply isn't a REMS trigger. Choice D is incorrect since only B is the core reason.

Correct Answer: A

Rationale: Choice A is correct because diphenhydramine has strong anticholinergic effects (e.g., confusion, dry mouth), risky in the elderly, per Beers Criteria. Choice B is incorrect as atenolol (beta blocker) lacks anticholinergic action. Choice C is wrong because lisinopril (ACE inhibitor) doesn't affect cholinergic systems. Choice D is incorrect since only diphenhydramine applies.

Correct Answer: D

Rationale: Choice D is correct because explaining purpose (improves adherence), safe administration (prevents errors), and side effects (enhances safety) are all key for elderly education, per geriatric care. Choice A is incorrect alone as it's one aspect. Choice B is wrong by itself because administration is just part. Choice C is incorrect solo since side effects are only one element.

Correct Answer: D

Rationale: Choice D is correct because using licensed pharmacies (regulated supply), checking packaging (authenticity cues), and avoiding unverified online sources (high-risk) all prevent counterfeit drug use, per FDA advice. Choice A is incorrect alone as it's one strategy. Choice B is wrong by itself because packaging is just part. Choice C is incorrect solo since online avoidance is only one method.