Formula

CreatClear = (140 – Age – 30 * (CreatDay2 – CreatDay1)) * Weight / (72* ((CreatDay1 + CreatDay2) / 2))

References

Levey AS, Bosch JP, Lewis JB, et al. A more accurate method to estimate glomerular filtration rate from serum creatinine: a new prediction equation. Modification of Diet in Renal Disease Study Group. Ann Intern Med 1999; 130:461.

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