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What are the Symptoms of Kidney Failure? Chronic kidney disease (CKD) progresses gradually, and they are asymptomatic until the kidneys are totally damaged. Some of the symptoms noted during renal failure are: Itching Loss of appetite Nausea and vomiting Insomnia Abdominal pain A drastic slowdown in the functioning of the kidney leads to the buildup of toxins and impurities in the blood, thus making the individual feel tired, weak, and hard to concentrate. Anemia is another complication of kidney disease leading to weakness and fatigue. An urge to urinate more often is also indicative of kidney disease or a damaged kidney filter is also a sign for urinary infection. Further, when the filters are damaged blood cells start to leak out into the urine. Protein in the urine means that the filters of the kidneys are not functioning normally, thereby letting the proteins to leak in the urine rather than storing them for good health. Thus the urine becomes frothy and foamy when compared to normal urine consistency. Decreased kidney function leads to sodium retention, which causes the ankles and feet to swell. Finally, impaired kidney function leads to electrolyte imbalance contributing to muscle cramping. Client Diagnosis of Renal Failure Diagnosis of kidney disease is not a direct test that can be performed. When diagnosis for other medical conditions are performed, kidney disease is noted to be a consequence of the primary disease. Diagnosis of kidney failure is carried out by means of a blood test, which measures BUN, GFR, and creatinine, in turn helping to measure the build-up of waste products in the blood. Urine tests measure the amount of proteins and concentration of electrolytes, and the presence of abnormal cells. Abdominal ultrasound and kidney biopsy are other tests used in the diagnosis of renal failure.