Use of the serum creatinine to estimate glomerular filtration rate in health and early diabetic nephropathy. Collaborative Study Group of Angiotensin Converting Enzyme Inhibition in Diabetic Nephropathy.
We evaluated 100/serum creatinine, 24-hour creatinine clearance, and simultaneously measured creatinine clearance or creatinine clearance estimated by the formula devised by Cockcroft and Gault in comparison with measurements of glomerular filtration rate (GFR) using iothalamate among 136 patients with diabetic nephropathy. We also evaluated 100/serum creatinine, simultaneously measured creatinine clearance or creatinine clearance estimated by the Cockcroft and Gault formula in comparison with measurements of GFR using inulin among 88 healthy adults, 21 hypercalciuric kidney stone formers and their hypercalciuric relatives, and one man with chronic nephritis. Creatinine clearances measured simultaneously were closely correlated to GFR (r = 0.93) as were creatinine clearances, estimated by the Cockcroft and Gault formula (r = 0.84) when GFR ranged from 16 to 175 mL/min (0.27 to 2.92 mL/s). These observations confirm the clinical use of either creatinine clearances during water diuresis or estimates of creatinine clearance by the Cockcroft and Gault formula in the assessment of kidney function.
Lemann
J
J
Nephrology Division, Medical College of Wisconsin, Froedtert Memorial Lutheran Hospital, Milwaukee 53226.
Bidani
A K
AK
Bain
R P
RP
Lewis
E J
EJ
Rohde
R D
RD
D000328:Adult; D015415:Biomarkers / Q000097:blood; D003404:Creatinine / Q000097:blood*; D003928:Diabetic Nephropathies / Q000097:blood / Q000503:physiopathology*; D004311:Double-Blind Method; D005260:Female; D005919:Glomerular Filtration Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D012016:Reference Values
D015415:Biomarkers; D003404:Creatinine