Smoking cigarettes affects drug metabolism by causing the:

Choice A reason: Laxatives don’t significantly affect warfarin’s anticoagulation; this is safe. Aspirin increases bleeding risk, needing teaching, per nursing pharmacology. It’s a universal distinction, distinctly unrelated to warfarin’s primary concerns.

Choice B reason: Occasional antacids minimally impact warfarin; this is acceptable. Aspirin’s bleeding risk is the issue, per nursing standards. This doesn’t require teaching, universally distinct from anticoagulation education.

Choice C reason: Corn has negligible vitamin K; it doesn’t affect warfarin. Aspirin use needs correction, per nursing pharmacology. This is safe, universally distinct from dietary teaching for anticoagulants.

Choice D reason: Aspirin with warfarin heightens bleeding risk significantly; this requires teaching. Other statements are benign, per nursing standards. It’s a universal concern, distinctly critical for safe anticoagulation management.

Choice A reason: Back-of-tongue placement eases swallowing; it’s standard practice. Last med isn’t a rule. This fits nursing pharmacology standards. It’s universally distinct, correct.

Choice B reason: Water moistens mouth, aiding swallowing; it’s routine always. Last med isn’t required. This aligns with nursing standards. It’s universally distinct, proper.

Choice C reason: Importance order isn’t a principle; other steps are standard. This is the exception per nursing pharmacology. It’s universally distinct, not applicable.

Choice D reason: Staying ensures meds are taken; it’s essential always. Last med isn’t a principle. This fits nursing standards. It’s universally distinct, safety-focused.