Stage 3 kidney disease causes fluid retention, kidney pain, sleep problems, fatigue and swelling of the extremities, states DaVita HealthCare Partners. A person with stage 3 kidney disease may also have brown urine, foamy urine, blood in the urine or changes in urinary frequency.
Stage 3 kidney disease is characterized by a glomerular filtration rate of 30 to 59, notes WebMD. Glomerular filtration rate, or GFR, is a measurement of how well the kidneys work. The pain associated with stage 3 kidney disease usually occurs in the middle or lower part of the back, reports the National Kidney Center. As kidney disease progresses, some foods start to taste funny. People with stage 3 kidney disease may also experience changes in their eating habits, develop high blood pressure or have digestive problems.
An individual with stage 3 kidney disease should see a kidney specialist, recommends DaVita HealthCare Partners. This specialist, called a nephrologist, orders blood tests and performs physical examinations to determine if the disease is getting worse. A person with stage 3 kidney disease should also work with a dietitian to develop an eating plan to help preserve kidney function. A good diet for kidney disease usually limits sodium, phosphorus and calcium consumption. It is also important to eat high-quality sources of potassium and protein.