This application allows medical professionals to estimate kidney function using four separate eGFR calculators: -CKD-EPI Creatinine 2009 Equation -MDRD Study Equation -Cockcroft-Gault Formula -Schwartz Formula Also includes information on: -Glomerular filtration rate (GFR) -Chronic kidney disease (CKD) -Risks for CKD and kidney failure -How to test, evaluate, and slow progression