Estimation of glomerular filtration rate from plasma creatinine concentration in children.

Estimation of glomerular filtration rate from plasma creatinine concentration in children of various ages.

The relation between the true plasma creatinine concentration (Pc) and the glomerular filtration rate corrected for body surface area (GFR/SA) was investigated in 108 individuals, and the following formula was derived: GFR/SA (ml/min per 1-73m2SA) = 0-43 Ht (cm)/Pc (mg/100 ml). This formula was tested in a second group of 83 children, and its accuracy and precision was compared to the 24-hour c...

Estimation of glomerular filtration rate from the serum creatinine concentration.

In patients with renal failure the dose of renally excreted drugs should be reduced in proportion with the degree of impairment of glomerular filtration: in this situation it is appropriate to measure the glomerular filtration rate in order to determine accurately the correct dose. However, as 24 hour urine based creatinine clearance measurements are time consuming and inaccurate, the parameter...

Estimation of glomerular filtration rate from height/plasma creatinine ratio.

Inaccuracy of glomerular filtration rate estimation from height/plasma creatinine ratio.

Use of a height/plasma creatinine formula to estimate glomerular filtration rate (GFR) is simpler and less invasive than renal or plasma clearance methods. The aim of this study was to determine whether these formulas enabled accurate prediction of GFR measured from the plasma clearance of 51Cr labelled ethylenediaminetetra-acetic acid (51Cr-EDTA). Thirty nine patients underwent GFR measurement...

Creatinine production, nutrition, and glomerular filtration rate estimation.

This study examined the validity and clinical implications of the assumption of the Modification of Diet in Renal Disease Study (MDRD) formula that age, gender, race, and BUN account for creatinine production (CP). The relationships of MDRD GFR, CP, and nutrition were examined in 1074 Dialysis Morbidity and Mortality Study Wave II patients with reported measured creatinine clearances at initiat...