Aging Changes in the Kidneys
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Effect of changes
The kidneys have a built-in extra capacity. Under usual conditions, kidney function remains normal in an aging person, although sometimes they function more slowly than the kidneys of a younger person.
However, decreased efficiency occurs when the kidneys are under an increased workload. Illness, medications, and other conditions can increase kidney workload.
The changes in the kidneys may affect an elderly person's ability to concentrate urine and hold onto water. The response to changes in fluids and electrolytes taken in is slowed. Dehydration occurs more readily because older people frequently have less of a sense of thirst.
Dehydration can also be aggravated if an older person reduces fluid intake in an attempt to reduce bladder control problems (urinary incontinence).
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