A person with stage 3 chronic kidney disease (CKD) has moderate kidney damage. This stage is broken up into two: a decrease in glomerular filtration rate (GFR) for Stage 3A is 45-59 mL/min and a decrease in GFR for Stage 3B is 30-44 mL/min. As kidney function declines waste products can build up in the blood causing a condition known as “uraemia.” In stage 3 a person is more likely to develop complications of kidney disease such as high blood pressure, anaemia (a shortage of red blood cells) and/or early bone disease.