Diminished renal reserve is indicated by what percentage of nephron loss?

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Multiple Choice

Diminished renal reserve is indicated by what percentage of nephron loss?

Diminished renal reserve occurs when the kidney’s ability to compensate by the remaining nephrons begins to decline, which happens when about half of the nephrons have been lost. The remaining nephrons can still maintain overall function up to a point, but once roughly 50% are gone, the capacity to increase GFR in response to added demand diminishes, marking diminished renal reserve. This is why 50% nephron loss is the best indicator among the options. At smaller losses (around 25%), reserve is largely preserved, and with much larger losses (75% or more), renal insufficiency or failure becomes evident.

Diminished renal reserve occurs when the kidney’s ability to compensate by the remaining nephrons begins to decline, which happens when about half of the nephrons have been lost. The remaining nephrons can still maintain overall function up to a point, but once roughly 50% are gone, the capacity to increase GFR in response to added demand diminishes, marking diminished renal reserve. This is why 50% nephron loss is the best indicator among the options. At smaller losses (around 25%), reserve is largely preserved, and with much larger losses (75% or more), renal insufficiency or failure becomes evident.

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