A member asked:

Had bun and creatiinine tested normal. but not gfr are first 2 the definitive answer? can first 2 be normal and gfr below normal and thus impaired renal function? this is in context of symptoms after contrast dosing.

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Dr. Clarence Grim answered

Specializes in Endocrinology

EGFR: The eGFR is not nearly as good as a true 24 hr urine collection for a creatinine clearance. The e stands for ESTIMATED. The urine will give you your real creatinine clearance. Discuss with your Dr. eGFR uses age and ethnicity. Did they have those correct.

Answered 8/7/2020

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A member asked:

Had bun and creatiinine tested normal. but not gfr are first 2 the definitive answer? can first 2 be normal and gfr below normal and thus impaired renal function? this is in context of symptoms after contrast dosing.

A doctor has provided 1 answer

Dr. Clarence Grim answered

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