Tricyclics are classified as:

Choice A reason: Smoking impacts liver, not kidney excretion speed primarily. Liver metabolism accelerates instead. This choice errors per nursing pharmacology. It’s universally distinct, targeting the wrong organ for effect.

Choice B reason: Smoking induces liver enzymes, speeding drug metabolism significantly. This aligns with nursing pharmacology standards. It’s universally recognized, distinctly affecting drug efficacy and dosing needs.

Choice C reason: Smoking hastens, not slows, liver drug metabolism typically. This choice reverses nursing pharmacology facts. It’s universally distinct, contradicting known metabolic effects of smoking.

Choice D reason: Kidney excretion isn’t slowed by smoking; liver speeds metabolism. This choice misaligns with nursing standards. It’s universally distinct, errors in organ and effect direction.

Choice A reason: Three label checks ensure dosage accuracy, part of safe practice. All steps are correct, per nursing standards. It’s universally applied, distinctly reducing errors in medication administration.

Choice B reason: Verifying spelling and dosage across order, MAR, and label prevents mistakes. All are essential, per nursing pharmacology. It’s universally critical, distinctly ensuring drug accuracy.

Choice C reason: Rights (patient, drug, dose) are core to administration; all options support them. This is fundamental, per nursing standards. It’s universally upheld, distinctly guiding safe practice.

Choice D reason: All—label checks, verification, rights—combine for safe administration comprehensively. This aligns with nursing pharmacology standards, universally recognized and distinctly applied as best practice.