Is kidney function OK, should check blood or check urine? Don’t be so stupid! I’ll show you how to read the test sheet

The main function of the kidney is to produce urine, which can excrete the garbage and toxin produced by metabolism through the urine. After reabsorption, the beneficial substances and water are retained, the water electrolyte balance is adjusted, and the acid-base balance is maintained. When the renal function decreases, the ability of the kidney to discharge garbage is bound to decrease, which will change the concentration of some substance in the blood, so blood examination can understand the renal function. The general doctor will use the indicator combination of screening renal function, extract venous blood for one-time detection, which is called renal function combination. < p > < p > under normal conditions, the creatinine produced every day is in a dynamic balance state, and the creatinine in the blood is filtered through the glomerulus and then discharged from the body. When the glomerular filtration rate drops to 30%, the serum creatinine concentration will be increased. Therefore, by looking at serum creatinine can understand the renal filtration function, which is an important index to evaluate renal function. In the compensatory stage of renal function, the serum creatinine is 133 ~ 177umol; in the decompensated stage, the serum creatinine is 186 ~ 442; in the renal failure, the serum creatinine is 451 ~ 707; when it is more than 707, it indicates that the patient has entered the uremic stage. < / P > < p > the protein obtained from food and tissue protein in the body decomposes, and eventually enters the liver, and then forms urea, which is excreted with the kidney. When renal parenchyma is damaged, glomerular filtration rate will be reduced and blood urea nitrogen concentration will be increased. When the blood urea and nitrogen are insufficient, the kidney will lose blood volume, which will lead to kidney failure. There are persistent high fever, acute infectious diseases, upper gastrointestinal bleeding, etc., which will accelerate the protein decomposition, and also cause the increase of urea nitrogen. Cystatin C is also an index to evaluate renal filtration capacity. It is relatively constant in the body and is not interfered by age, diet or other diseases and inflammation. < / P > < p > hyperuricemia indicates that the purine metabolism in the body is disordered, which makes the blood uric acid increase. This is a metabolic disease. When the function of uric acid excreted by the kidney is abnormal, the blood uric acid will be increased. High uric acid can cause gouty arthritis and damage the kidney. Glucose can be used to diagnose diabetes mellitus. Elevated blood glucose does not mean kidney problems. However, persistent hyperglycemia will destroy renal function and lead to diabetic nephropathy, which will lead to renal failure. < / P > < p > blood β 2-microglobulin production in the body is relatively constant, when glomerular filtration function is reduced, blood β 2-microglobulin level will be increased. In addition, when there is tumor or inflammation in the body, blood β 2-microglobulin will be increased. Although blood examination can roughly understand renal function, routine urine examination should not be neglected. Once abnormal renal function is found, it is necessary to actively cooperate with doctors for treatment. Usually need to do a good job in cold prevention and warm keeping, actively prevent infection, can not abuse analgesic or Chinese herbal medicine and cold medicine. Don’t eat too much salt and protein, so as not to increase the burden on the kidney. Drink more water and urinate more, which can help the kidney excrete poison and reduce the burden on the kidney. 21 days after delivery, the pregnant woman had a new baby, but the doctor did not find it was “twins”