Medication Reconciliation After a Fall in a Patient on Multiple Antihypertensives
A 76-year-old man is admitted after a mechanical fall at home with no loss of consciousness and no fracture on imaging. He lives alone and manages his own medications. His list includes lisinopril 20 mg daily, metoprolol succinate 100 mg daily, amlodipine 10 mg daily, furosemide 40 mg twice daily, and tamsulosin 0.4 mg nightly. He also takes over-the-counter diphenhydramine 25 mg at bedtime for sleep and ibuprofen 400 mg as needed for knee pain. On admission: BP 98/56 seated, HR 58, and he reports dizziness when standing. Labs show potassium 3.1 mEq/L, sodium 134 mEq/L, and creatinine 1.6 mg/dL, up from a baseline of 1.1. He says he "felt lightheaded" before the fall and has been getting up at night to urinate.
1. Analyze which medications likely contributed to the fall and the abnormal labs, and explain the mechanism for each.
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This is a cumulative-risk picture rather than one culprit. The antihypertensive combination, especially lisinopril plus amlodipine plus metoprolol plus furosemide, produces additive blood pressure lowering and orthostatic hypotension; the dizziness on standing supports that. Metoprolol blunts the heart rate response, so HR 58 limits his ability to compensate. Furosemide twice daily explains the hypokalemia, hyponatremia, and the rising creatinine through volume depletion and prerenal azotemia, and it also drives nocturia. Tamsulosin causes orthostatic hypotension, particularly with nighttime rising, which fits the nocturia plus lightheadedness pattern. Diphenhydramine is an anticholinergic that causes sedation, confusion, and impaired balance in older adults, and it compounds fall risk. Ibuprofen is a nonsteroidal anti-inflammatory that reduces renal perfusion and, combined with lisinopril and furosemide, creates a triple-hit on the kidney that fits the creatinine rise and hyperkalemia risk. The nurse should present this as a medication review finding, not as a diagnosis, and flag it for the provider and pharmacist.
2. The provider asks the nurse to "just hold everything until rounds." Evaluate this instruction and describe the nurse's immediate plan.
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Holding everything is too blunt and could cause harm. Abruptly stopping metoprolol can precipitate rebound tachycardia, hypertension, or ischemia, and stopping all antihypertensives in a patient who may still be hypertensive at other times of day is not automatically safer. The nurse should clarify which specific medications to hold and for how long, and propose a targeted plan: hold the next furosemide dose given the hypokalemia, hyponatremia, and rising creatinine; hold or delay the next lisinopril and ibuprofen doses given the renal function; continue metoprolol but at a verified dose and monitor heart rate; and stop diphenhydramine because it is a clear fall risk with little benefit. The nurse should also implement fall precautions, orthostatic vital signs, strict intake and output, daily weights, and electrolyte monitoring, and request a pharmacist review. The key judgment is that the nurse does not simply comply with a vague order; the nurse clarifies, proposes a safer specific plan, and documents the rationale and the provider's response.
3. Describe the discharge teaching the nurse should provide to reduce the risk of another fall, including how to confirm the patient understands.
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Teaching should be concrete and prioritized for a man living alone. Explain orthostatic hypotension and the safe sequence: sit on the edge of the bed for a minute, stand holding something stable, and wait before walking, especially at night. Address nocturia by limiting fluids in the evening and taking tamsulosin at bedtime as prescribed, and suggest a bedside commode or night light. Review each medication's purpose and timing, and explain why diphenhydramine and routine ibuprofen should be avoided, offering alternatives to discuss with the provider for sleep and knee pain. Warn against stopping metoprolol abruptly. Encourage hydration and a diet plan consistent with the electrolyte and renal findings, and schedule follow-up labs. Confirm understanding with teach-back: ask him to describe his morning routine and what he will do if he feels dizzy, rather than asking "Do you understand?" Assess whether he has someone who can check on him, and arrange a home safety review and pharmacy synchronization to reduce confusion. Document the teach-back results.