Recalibration of cystatin C using standardized material in Siemens nephelometers.
George J SchwartzChristopher CoxJesse C SeegmillerPaula S MaierDonna DiMannoSue L FurthBradley A WaradyAlvaro MunozPublished in: Pediatric nephrology (Berlin, Germany) (2019)
We confirm the recalibration proposed by Siemens. To convert pre-IFCC results to IFCC-calibrated concentrations, the value is multiplied by 1.17. Conversely, one divides IFCC-calibrated results by 1.17 to estimate GFR via previously published pre-IFCC CKiD eGFR equations. For older adolescents, cystatin C has already been standardized and can be directly applied to the CKD-EPI equations.