What is normal blood urea nitrogen to the number?

Urea nitrogen is a major human protein metabolism end products. Amino acid deamination produces NH3, and C02, both urea synthesis in the liver, per gram of protein metabolism of urea 0.3g. Urea nitrogen content of 28/60, almost half. Usually the kidneys to excrete urea, the main organ of urea from the glomerular filtration, tubular sections can be in the re-absorption, but the renal tubular reabsorption of urine flow rate the faster the less, that reached a maximum clearance rate. And serum creatinine, as in the early renal dysfunction, blood urea nitrogen in the normal range. When the glomerular filtration rate decreased to 50% below normal, blood urea nitrogen concentrations, it has rapidly increased. Under normal circumstances, blood urea nitrogen and creatinine ratio (BUN/Scr) value of about 10, high-protein diet, high catabolic state, water, renal ischemia, hypovolemia, and some acute glomerulonephritis, the ratio can be increased, even up to 20 to 30; and low-protein diet, liver disease, often reduce the ratio at this time can be called low azotemia.
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BUN of normal adult fasting 3.2-7.1mmol/L (9-20mg/d1).







2.95-6.8




normal serum creatinine and urea nitrogen in all hospitals because of different measurement methods, normal blood urea nitrogen values ??are also different. Generally normal blood urea nitrogen as 1.7-8.3mmol/L, normal range of hospital and some 3.2 ~ 6.0mmol/L. Once the patient check blood urea nitrogen values ??higher than normal when the hospital is located, namely, that high urea nitrogen.

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