Kidney biomarkers

Kidney function refers to the function of kidney excreting metabolic waste, maintaining the stability of sodium, potassium, calcium and other electrolytes and the function of acid-base balance. The changes of creatinine clearance rate, serum creatinine and blood urea nitrogen can be used to determine the normality or impairment degree of the kidney function. For example, when chronic kidney function is impaired, the creatinine clearance rate is decreased. While the serum creatinine is still within the normal range, which is a mild impairment of kidney function. If serum creatinine also increased, it is moderate damage.