Glomerular function test

The glomerular function test is an auxiliary test to check whether the glomerular function is normal. The basic function of the kidney is to excrete metabolic waste, regulate and maintain water, electrolytes, acid-base and osmotic pressure balance, and secrete endocrine hormones. Urinary excretion is one of the main physiological functions of the kidney, and the raw urine formed by filtering through the glomerulus can reach 180 liters per day. The test items include serum urea nitrogen (BUN) measurement, blood creatinine (Cr) measurement, and endogenous creatinine clearance (Ccr) measurement.