Brandt et al reported an equation for estimating the glomerular filtration rate (GFR) in pediatric patients. The authors are from the University of New Mexico, University of Washington Seattle, and Baylor Medical College.
Patient selection: pediatric patient from 2.8 to 19.5 years
Parameters:
(1) age in months
(2) weight in kilograms
(3) serum creatinine in mg/dL
(4) gender
Gender
Points
male
1.05
female
0.95
GFR in mL per minute =
= (points for gender) * SQRT(((age in months)+6) * (weight) / (serum creatinine))
Age in Years
Mean GFR mL per min
0 to 1
20.6
1.01 to 2
30.9
2.01 to 3
35.8
3.01 to 6
54.0
6.01 to 11
78.2
11.01 to 13
110.8
13.0 to 20
133.6
from Table 3
where:
• Adjusting the GFR to "per 1.73 square meter" would increase the GFR.
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