Which instruction should the nurse provide to an older adult client who is taking an angiotensin converting enzyme (ACE) inhibitor and a calcium channel blocker (CCB)?

A. Report the onset of a sore throat: ACE inhibitors can rarely cause neutropenia or agranulocytosis, which may present as a sore throat. While reporting unusual symptoms is important, this is less immediate compared with preventing hypotension-related falls in older adults taking these medications. B. Change positions slowly: Both ACE inhibitors and calcium channel blockers can cause vasodilation and lead to orthostatic hypotension, especially in older adults. Advising the client to rise slowly from sitting or lying positions helps prevent dizziness, lightheadedness, or falls, making this instruction crucial for safety. C. Wear long sleeved clothing when outdoors: This instruction is typically given for photosensitivity or skin protection from sun exposure. ACE inhibitors and most calcium channel blockers are not strongly associated with photosensitivity, so this is not a primary concern. D. Eat plenty of potassium rich foods: ACE inhibitors can increase serum potassium levels, so older adults are often advised to monitor potassium intake carefully rather than increase it. Excess potassium can lead to hyperkalemia, which may cause cardiac complications, making unrestricted potassium intake inappropriate.