Ontario’s community laboratories routinely calculate estimated glomerular filtration rate (eGFR), based on the MDRD (Modification of Diet in Renal Disease) equation, whenever serum creatinine is requested in an adult. Recently, a modified eGFR equation has been developed and endorsed by KDIGO (Kidney Disease: Improving Global Outcomes), the Canadian Society of Nephrology, and the Ontario Renal Network. Dynacare will be calculating eGFR based on the CKD-EPI formula starting May 4, 2015. For more information, please see the Client Notice below.