Pharmacy, Healthcare, and Behavior (SAB III) Practice Test

Taking many medications in older adults increases complexity and risk. The best description recognizes four key issues: drug interactions and adverse effects that can occur when medicines influence each other or accumulate in the body; nonadherence that arises from managing multiple dosing schedules; and cognitive burden from keeping track of who is taking what and when. Aging also changes how drugs are absorbed, distributed, metabolized, and excreted, which heightens the chance of adverse drug events and underscores the need for careful monitoring and regular review. The other statements don’t fit because they imply there are only benefits with no risks, or that monitoring is less needed, or that adverse events are less likely—none of which align with how polypharmacy actually affects older adults.