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Calculator: Glomerular filtration rate estimate by abbreviated MDRD study equation in adults


 Calculator: Glomerular filtration rate estimate by abbreviated MDRD study equation in adults

 
Input
 
Serum creatinine  
Creatinine assay IDMS (175)

 Non-IDMS (186)
Age  
Sex Female (0.742)

 Male (1)
Race Black (1.21)

 Nonblack (1)

 
Result
 
 
Estimated GFR   mL/min/1.73 m2
 
Decimal precision  

 
 
Notes
  • IDMS indicates a method for determining creatinine concentration that has been standardized using or traceable to IDMS. Contact laboratory if uncertain as to whether or not reported values are IDMS-traceable.
  • You can estimate the glomerular filtration rate from the formula if the serum creatinine concentration is stable.
  • The accuracy of the abbreviated MDRD study equation as an estimate of the true glomerular filtration rate is discussed elsewhere in UpToDate.
  • GFR: glomerular filtration rate; MDRD: Modification of Diet in Renal Disease; IDMS: isotope dilution mass spectrometry.

 
Equations used
 
Estimated_GFR = Creatinine_assay * Serum_creatinine-1.154 * Age-0.203 * Sex * Race

 

 
Equation parameters, such as Creatinine assay, have two or more discrete values that may be used in the calculation. The numbers in the parentheses, eg, (175), represent the values that will be used.
 

 
References
  1. Levey AS, Greene T, Kusek JW, et al. A simplified equation to predict glomerular filtration rate from serum creatinine. J Am Soc Nephrol 2000; 11:A0828.
Only digits 0 to 9 and a single decimal point (".") are acceptable as numeric inputs. Attempted input of other characters into a numeric field may lead to an incorrect result.

Information on this page may not appear correctly if printed.

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