Stages of Chronic Kidney Disease (CKD)
Chronic kidney diseases are often confused with kidney failure. Infact kidney failure is the last stage of chronic kidney disease. The National Kidney Foundation has listed out five stages of chronic kidney disease to diagnose the problem as early as possible and treat it.
Stage 1: In the first stage of a chronic kidney disease, the GFR is equal to or greater than 90 ml/min, which is same as that of a healthy kidney. There are almost no symptoms and hence the diagnosis is difficult. But it is generally recommended for patients suffering from diabetes to go through tests, which can give the details of the amount of creatinine or urea in the blood. An increased amount of creatinine in the blood or proteins in the urine is a clear indication that a person is suffering from chronic kidney disease. The other methods used to understand the state of a person's kidney are MRI, ultrasound, X-ray and CT scan. If the problem is diagnosed at the first stage, the treatment becomes relatively simpler and medication can be used to stop, retard or reverse the CKD.
Stage 2: The symptoms in the second stage of a chronic kidney disease are also not identifiable, just as in the first stage. The GFR lies between 60 and 89ml/min. The diagnosis can again be done through X-ray, MRI, ultrasound and CT-scan. Dialysis is generally not required if a person is detected with kidney disease at the second stage.
Stage 3: This is the stage where the symptoms start showing. The GFR falls somewhere in between 30 to 59 ml/min. The patient shows symptoms of fatigue and breath shortage. Liquids start accumulating in different parts of the body and this is clearly visible because of the swelling of the hands and legs. The urine color of the person also shows identifiable changes. It changes to dark orange, red or brown. A person, if diagnosed at the third stage of chronic kidney disease, is referred to a nephrologist, who performs various lab tests to understand the root cause of the problem and suggests the type of treatment. A person in the third stage of chronic kidney disease should also consult a dietitian who would recommend the diet that would be most beneficial for him. If a patient is suffering from polycystic kidney disease, he may experience pain at the back of his body, the area where the kidneys are located.
Stage 4: With the GFR falling further, the patient starts showing additional symptoms. With increase in urea content in the patient's blood, he normally develops a bad breath. Nauseating feelings and loss of appetite are the common symptoms of a patient going through the fourth stage of CKD. There are a variety of nerve problems that a patient normally suffers from and he loses his capability to concentrate. The GFR in the fourth stage of CKD is between 15 to 29 ml/min. Hemodialysis and peritoneal dialysis are the common treatments at this stage. Kidney transplant is also recommended by many nephrologists, if the GFR is very close to 15 ml/min.
Stage 5: The fifth stage of chronic kidney disease can be termed as a complete kidney failure. The GFR is below 15 ml/min and in some cases the patient may have a GFR of 0 ml/min. Headache and change in skin color add to the symptoms that already exist in the fourth stage. With the failure of kidneys, the urination of the patient decreases to little or almost nil. A kidney transplant is the most recommended treatment at the fourth stage of CKD, though the patient may be kept on hemodialysis or peritoneal dialysis for a certain period of time.
It is always beneficial to get CKD diagnosed at the early stages. The treatment in the early stages is simpler and less expensive, but if diagnosed at the later stages, the situation can become extremely complicated.

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