A nurse is teaching an older adult client about safe medication administration. Which statement by the client indicates a need for further teaching?

A. "I'll report any new confusion, dizziness, or unsteady gait that occurs after starting a new medication.": Older adults are more susceptible to central nervous system effects due to altered pharmacokinetics and increased blood-brain barrier permeability. Symptoms such as confusion, dizziness, or gait instability increase fall risk and may indicate drug accumulation or sensitivity. B. “I’ll avoid abruptly stopping any medication, even if I start to feel better.": Abrupt discontinuation of certain medications, such as beta-blockers, benzodiazepines, or antidepressants, can result in rebound effects or withdrawal symptoms. Gradual tapering is often required to maintain physiologic stability. C. "Because my metabolism has slowed down, it might take longer for medications to start working, so I can take another dose if I don't feel better.": Age-related reductions in hepatic metabolism and renal clearance increase the risk of drug accumulation and toxicity. Taking an extra dose without provider guidance can lead to supratherapeutic levels and adverse effects. D. "Since my kidneys don't clear drugs as efficiently, I should avoid taking over-the-counter medications unless approved by my provider.": Renal function often declines with age, reducing drug clearance and increasing susceptibility to toxicity. Many over-the-counter medications, including NSAIDs and antihistamines, can impair renal function or interact with prescribed therapies.