Dizziness and Falls in an 84-Year-Old on Four Antihypertensives
An 84-year-old woman who lives alone presents after her second fall in three months. She has mild Alzheimer disease (MMSE 22), hypertension, type 2 diabetes, and CKD stage 3b (eGFR 36 mL/min/1.73 m²). Her medications are lisinopril 20 mg daily, hydrochlorothiazide 25 mg daily, amlodipine 10 mg daily, and metoprolol succinate 50 mg daily. Home readings are 118–132/62–70 mm Hg seated; after standing one minute she feels dizzy and her blood pressure is 92/54 mm Hg. She has no syncope, chest pain, or focal neurologic symptoms. Laboratory results: sodium 133 mmol/L, potassium 3.4 mmol/L, creatinine 1.5 mg/dL. She insists on keeping every pill because a prior clinician told her blood pressure must be below 130/80. She has no advance directive and her daughter helps with medications.
1. What is the likely mechanism of her falls, and which medications are the highest-yield targets?
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She has symptomatic orthostatic hypotension: a fall in systolic pressure of at least 20 mm Hg (132 to 92) or diastolic of at least 10 mm Hg within 1–3 minutes of standing, with dizziness. In an 84-year-old with CKD and two falls, this is the leading contributor. Hydrochlorothiazide is the highest-yield target because it causes volume depletion, hyponatremia (Na 133), and hypokalemia (K 3.4), all of which impair cerebral perfusion and neuromuscular stability. Lisinopril adds vasodilation and hyperkalemia risk but is valuable for diabetic kidney protection. Metoprolol can blunt compensatory tachycardia and cause fatigue; amlodipine is less orthostatic but contributes to overall BP lowering. I would also screen for anemia, B12 deficiency, thyroid disease, sedatives, vision problems, footwear, and home hazards. The key is not to stop all antihypertensives at once, which risks rebound hypertension, but to remove the medication with the clearest harm-to-benefit imbalance first.
2. Write a stepwise deprescribing and monitoring plan for the next 8 weeks.
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- Stop hydrochlorothiazide now; check BMP and seated/standing BP in 1–2 weeks. 2) If she remains symptomatic or standing systolic is below 100 mm Hg, reduce metoprolol succinate to 25 mg daily (taper rather than abrupt stop) and recheck in 1–2 weeks. 3) If orthostasis persists, reduce amlodipine to 5 mg daily. Keep lisinopril unless she develops hyperkalemia or AKI, because it protects the kidney in diabetes. 4) Set a seated target of systolic 130–150 mm Hg rather than below 130; avoid standing systolic below 100. 5) Nonpharmacologic measures: rise slowly, sit at the edge of the bed, hydrate, avoid hot showers, use compression stockings if tolerated, review sedatives, and refer to physical therapy for gait and balance. 6) Track falls, dizziness, home BP, electrolytes, and creatinine. 7) If falls continue, evaluate for arrhythmia, carotid sinus hypersensitivity, or neurodegenerative causes.
3. How would you counsel her and her daughter about BP targets and goals?
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Explain that her current regimen is causing more harm than benefit: the goal is not a number on a card but preventing stroke and falls while preserving function. In frail older adults, especially with orthostatic symptoms and CKD, a seated systolic of 130–150 mm Hg is often reasonable; intensive control below 130 may increase falls, AKI, and electrolyte problems. Use teach-back: she should take her BP seated and standing, record symptoms, and call if standing systolic is below 100 or she feels dizzy. Involve the daughter in medication changes and fall-proofing. Clarify goals of care and complete an advance directive, because recurrent falls signal frailty. Document the shared decision: we are deprescribing to reduce falls, not abandoning BP control, and we will recheck in 2 weeks.