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Aging and the kidney: adjusting treatment to physiologic change
1Geriatric Section, San Francisco Veterans Administration Medical Center.
Geriatrics
|March 1, 1988
Summary
As people age, kidney function declines, increasing risks from medications. Understanding these changes helps prevent adverse drug effects and ensures proper treatment for older adults.
Area of Science:
- Nephrology
- Geriatric Medicine
- Pharmacology
Background:
- Aging is associated with significant alterations in renal physiology and function.
- These age-related changes can impact drug pharmacokinetics and pharmacodynamics in elderly patients.
Observation:
- Morphologic changes, decreased renal blood flow, and reduced glomerular filtration rate are common in aging kidneys.
- The aging kidney exhibits a blunted tubule response, affecting electrolyte and water balance.
- Elderly patients face increased risks for adverse drug events and undertreatment due to these functional changes.
Findings:
- Age-related kidney alterations necessitate careful consideration in drug selection and dosing for the elderly.
- Failure to account for diminished renal function can lead to common issues like volume depletion, infections, and electrolyte imbalances.
Implications:
- A comprehensive understanding of age-related kidney alterations is crucial for optimizing pharmacotherapy in older adults.
- Tailoring drug regimens based on geriatric renal function can prevent adverse outcomes and improve therapeutic efficacy.
- This knowledge aids in preventing complications such as hyponatremia, metabolic acidosis, and medication toxicity in the elderly population.