An older adult client is prescribed a new blood pressure medication. Which teaching point is MOST important for this population?

ORTHOSTATIC HYPOTENSION is defined as a drop in systolic blood pressure of 20 mmHg or more (or diastolic 10 mmHg or more) within 3 minutes of standing from a sitting or lying position. OLDER ADULTS ARE AT HIGHER RISK because: baroreceptors (pressure sensors in blood vessels) become less sensitive with age — the reflex to increase heart rate and vasoconstriction when standing is slower; reduced cardiovascular reserve means the body compensates less effectively; many older adults are dehydrated due to reduced thirst sensation; polypharmacy compounds the risk (multiple antihypertensives, diuretics, alpha-blockers, beta-blockers). PATIENT TEACHING — ORTHOSTATIC PRECAUTIONS: Sit on the edge of the bed for 1-2 minutes before standing; stand slowly; hold onto a support rail or sturdy piece of furniture when first standing; wait until any dizziness passes before walking; if dizzy, sit or lie back down immediately; report persistent dizziness to provider. CONSEQUENCES OF ORTHOSTATIC HYPOTENSION: Falls — the most serious consequence; head injuries, hip fractures, subdural hematomas; syncope (fainting). PN ROLE: Teach safety; measure orthostatic blood pressure (lying, sitting, standing) when antihypertensives are initiated or dosage changes; document and report positive orthostatic changes to RN/provider.