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Chronic kidney disease is the slow loss of kidney function over time. The main job of the kidneys is to remove wastes and excess water from the body.
Kidney failure - chronic; Renal failure - chronic; Chronic renal insufficiency; Chronic kidney failure; Chronic renal failure
Chronic kidney disease (CKD) slowly gets worse over months or years. you may not notice any symptoms for some time. The loss of function may be so slow that you do not have symptoms until your kidneys have almost stopped working.
The final stage of chronic kidney disease is called end-stage renal disease (ESRD). At this stage, the kidneys are no longer able to remove enough wastes and excess fluids from the body. At this point, you would need dialysis or a kidney transplant.
Many other diseases and conditions can damage the kidneys, including:
Chronic kidney disease leads to a buildup of fluid and waste products in the body. This condition affects most body systems and functions, including:
The early symptoms of chronic kidney disease are the same as for many other illnesses. These symptoms may be the only sign of a problem in the early stages.
Symptoms may include:
Symptoms that may occur when kidney function has gotten worse include:
Most people will have high blood pressure at all stages of chronic kidney disease. During an exam, your health care provider may also hear abnormal heart or lung sounds in your chest. You may have signs of nerve damage during a nervous system exam.
Tests that check how well the kidneys are working include:
Chronic kidney disease changes the results of several other tests. You will need to have the following tests as often as every 2 - 3 months when kidney disease gets worse:
Other tests that may be done to look for the cause or type of kidney disease include:
This disease may also change the results of the following tests:
Controlling blood pressure will slow further kidney damage.
Making lifestyle changes can help protect the kidneys, and prevent heart disease and stroke, such as:
Always talk to your kidney doctor before taking any over-the-counter medicine. This includes vitamins, herbs and supplements. Make sure all of the doctors you visit know you have chronic kidney disease.
Other treatments may include:
Your doctor may have you follow a special diet for chronic kidney disease.
All people with chronic kidney disease should be up-to-date on the following vaccinations:
Some people benefit from taking part in a kidney disease support group.
Many people are not diagnosed with chronic kidney disease until they have lost most of their kidney function.
There is no cure for chronic kidney disease. If it worsens to end-stage renal disease, and how quickly, depends on:
Kidney failure is the last stage of chronic kidney disease. This is when your kidneys can no longer support our body's needs.
Your health care provider will discuss dialysis with you before you need it. Dialysis removes waste from your blood when your kidneys can no longer do their job.
Usually, you will go to dialysis when you have only 10 - 15 % of your kidney function left.
Even people who are waiting for a kidney transplant may need dialysis while waiting.
Treating the condition that is causing the problem may help prevent or delay chronic kidney disease. People who have diabetes should control their blood sugar and blood pressure levels and should not smoke.
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KDOQI. KDOQI Clinical Practice Guideline and Clinical Practice Recommendations for anemia in chronic kidney disease: 2007 update of hemoglobin target. Am J Kidney Dis. 2007; 50:471-530.
KDOQI; National Kidney Foundation II. Clinical practice guidelines and clinical practice recommendations for anemia in chronic kidney disease in adults. Am J Kidney Dis. 2006;47(5 Suppl 3):S16-S85.
Kidney Disease Outcomes Quality Initiative (K/DOQI). K/DOQI clinical practice guidelines on hypertension and antihypertensive agents in chronic kidney disease. Am J Kidney Dis. 2004; 43(5 Suppl 1):S1-S290.
Review Date: 10/2/2013
Reviewed By: Scott Miller, MD, Urologist in private practice in Atlanta, Georgia. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.
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