As chronic kidney disease progresses, the second stage (renal insufficiency) is identified by:
A) Decrease in GFR of 60 to 89 mL/minute/1.73 m2
B) Decrease in GFR to 30 to 59 mL/minute/1.73 m2
C) GFR decrease to 15 to 29 mL/minute/1.73 m2
D) Diminished GFR to less than 15 mL/minute/1.73 m2
Ans: A
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Diminished renal reserve is characteristic of renal insufficiency, when labs remain normal but there is renal insufficiency. Only the second stage, formerly known as renal insufficiency, is characterized by a decrease in GFR of 60 to 89 mL/minute/1.73 m2. The other choices represent stage 3, 4, and 5, respectfully.
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