What is the normal renal function indicators?

Renal function is the normal indicator of how much to understand the normal renal function indicators, renal function test What is the purpose of renal function test is to determine a person's kidney function of a good means of detection. Renal function test indicators normal or not, directly related to the function of the kidney. For renal function tests, there will be a lot of renal function indicators reflect the kidney. Kidney function is not only a urinary organ, but also an endocrine organ, in the body and kidney local play an important physiological role. Renal function tests include serum creatinine, blood urea nitrogen, blood and urine β2-microglobulin, urinary albumin, urinary immunoglobulin G, urinary secretory immunoglobulin A and so on.
What is the normal value of renal function indicators? The following is a brief introduction to the most commonly used several renal function test items.

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1, blood urea nitrogen and serum creatinine determination, which is more commonly used renal function tests:
Take 1 ml of venous blood, into the anticoagulation tube, and mix well. Normal blood urea nitrogen is 9 to 20 mg / liter, serum creatinine is 1 to 2 mg / liter. A variety of severe kidney disease caused by renal insufficiency when the whole increase. Upper gastrointestinal bleeding, severe infection and excessive protein in the diet, can make blood urea nitrogen temporarily increased. Serum creatinine concentration by diet and other factors less, significantly increased, suggesting poor prognosis.

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2, endogenous creatinine clearance test, which renal function in the glomerular lesions were more common:
Pre-test and test day low-protein diet for three days, fasting meat, to avoid strenuous exercise. At the end of the trial day 8, the urine was drained, and the urine was added to the clean container containing the toluene preservative at 24 hours thereafter. Test day to take venous blood 2 ~ 3ml. Will blood, urine at the same time check. The normal range is 109 to 148 liters / 24 hours (or 80 to 120 ml / min) with an average of 128 liters / 24 hours (or 100 ml / min). Clearance rate is less than 80% of normal, suggesting that glomerular filtration dysfunction. The clearance rate was 70 to 51 ml / min, with a slight decrease of 50 to 31 ml / min and a decrease of less than 30 ml / min. Clearance rate of 20 to 11 ml / min for early renal insufficiency, at 10 to 6 ml / min for advanced renal insufficiency, less than 5 ml / min for end stage renal insufficiency.

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3, phenol red (PSP) excretion test:
Before the test can not use aspirin, penicillin and other drugs. Drinking diets such as tea and coffee should be avoided before and during the test. 20 minutes before the test Zhu Huanzhe first go to urination, and then drinking water 300 ~ 400 ml, no longer drink water later. Accurately extract 0.6% phenol red solution with 1 ml syringe 1 ml by intravenous injection. After injection at 15,30,60,120 minutes to collect urine once, were collected in a clean specimen bottle, and timely inspection. 15 minutes after normal injection, the excretion rate was 25% or more, and the total excretion rate was greater than 55% at 120 minutes. Such as less than normal, that renal dysfunction, who can cause changes in renal blood flow diseases such as heart failure, severe hypertension and pyelonephritis, but also to reduce the rate of phenol red excretion.

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4, urine concentration and dilution function test:
Experimental day patients taking ordinary diet. Day and night within 24 hours every three hours urination once, were collected in the clean sample bottle. Normal daytime urine output and night urine output ratio of 3 to 4: 1; 12 hours night urine output does not exceed 750 ml; urine maximum proportion of 1.020 or more. The maximum proportion of the difference of not less than 0.009. Night urine output more than 750 ml, this phenomenon is often the early manifestations of renal insufficiency; the highest proportion of less than 1.08 that renal insufficiency; the proportion of different specimens is very small, the proportion of urine is mostly fixed at about 1.010, said kidney concentration Severe obstruction; daytime urine was fixed at 1.018 or higher, mostly dehydrated patients.
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Renal function of the normal indicators of what? Renal function tests of these indicators and what their significance? Renal function tests can be early detection of kidney disease, and can understand the damaged parts and extent of the kidney, help to diagnose and guide the treatment. However, kidney disease is not necessarily renal damage, because the kidney's reserve capacity is great. Some renal dysfunction occurs when the kidney is noticeable. In summary, the kidney lesions and the extent to make accurate judgments, in addition to according to renal function test indicators, still need to combine history, clinical manifestations, urine examination and renal pathological examination and other comprehensive assessment.

No matter what is the causes, kidney disease has affected the normal life of patients gradually.I hope our medical group can do our best to help the kidney disease patients all over the world. If you want to get some treatment or diet suggestions for kidney problem, you can feel to contact me by E-mail renal-disease@hotmail.com,or WhatsApp / Phone:008613633219293.

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