However, given the broad range of clinicians that use these calculators for various reasons, the additional results for the MDRD 6 variable are provided since it is also another common equation also evaluated in the original MDRD study. The MDRD 4 variable is the most common eGFR formula used in clinical practice. Kidney damage for ≥3 months, as defined by structural or functional abnormalities of the kidney, with or without decreased GFR, manifest by either: pathological abnormalities or markers of kidney damage, including abnormalities in the composition of the blood or urine or abnormalities in imaging tests. Staging should be done in patients who meet the following criteria for CKD: To calculate all estimated values for assessing renal function, visit the Comprehensive Renal Function Calculator. It is also important to note that currently the staging of chronic kidney disease (CKD) is based on the estimated GFR not the CrCl. Staging for Chronic Kidney Disease (CKD): Per the National Kidney Foundation (NKF), for values greater than this the result should be reported as being: ≥ 60 ml/min/1.73m 2. The estimated glomerular filtration rate (eGFR) is not accurate above 60 ml/min/1.73m 2. The Normal or Maximum estimated GFR (eGFR): If you want to know more about this please click hereĮGFR per CKD-EPI = 141 x min(Cr/k, 1) a x max(Cr/k, 1) -1.209 x 0.993 age x 1.018 x 1.159Ī = -0.329 for females -0.411 for males, min indicates the minimum of Cr/k or 1, and max indicates the maximum of Cr/k or 1ĮGFR per MDRD4 = 186 x creatinine -1.153 x age -0.203 x (0.742 if female) x (1.212 if black/African American)ĮGFr per MDRD6 = 170 × (serum Cr) -0.999 × age -0.176 × (BUN) -0.17 × albumin 0.318 × 0.762 × 1.18 If you are not sure or cannot find out, then leave box unchecked. You should know if your institution's lab or outside lab has changed to measuring creatinine assays that are IDMS traceable or not. The renal function is considered stable (i.e., not in acute renal failure) and the patient does not have significant liver disease If you are looking for the Pediatric eGFR Calculator click here Assumptions for the use of this Adult Estimated GFR Calculator:
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