Index one: Serum CreatinineCreatinine is a waste product in our blood that comes from muscle activity. Normally, creatinine is discharged by our kidneys and as renal function is impaired, creatinine piles up in our body. creatinine is not susceptible to our diet, so elevated creatinine level can not be lowered through following some dietary principles. In addition, creatinine level usually does not increase at the early stage of Chronic Kidney Disease, so once increased creainine level always indicates that renal damage has existed for a long time.
Index two: Glomerular Filtration Rate (GFR)Glomerular Filtration Rate is called GFR sometimes and it may be estimated from our blood level of creatinine. GFR can tell how much renal function we have and on the basis of it, Chronic Kidney Disease is divided into five stages. In general, occurrence of abnormal symptoms of Chronic Kidney Disease appears in stage 3.
Index three: Urine ProteinWhen your kidneys are damaged, large amount of protein will leak into your urine, which manifested as foamy urine. Proteinuria is one of the most important manifestations of Chronic Kidney Disease and it always tells that patients’ glomerular filtration membrane is damaged.Index four: Blood Urine NitrogenBlood Urine Nitrogen is the metabolin of protein eaten by us. Similar with creatinien, it is usually removed from our body by kidneys, but when renal function slows down, the Blood Urine Nitrogen level rises. One more thing, increased level of Blood Urine Nitrogen also can be caused by the overeating of protein, so it can not indicate decreased renal function correctly all the time.
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