How is urea nitrogen low

summary

Urea nitrogen is a very important index for us to check whether our kidney function is intact, which directly reflects the quality of the kidney. However, some people will have symptoms of low urea nitrogen during the examination. Let's talk about the low urea nitrogen.

How is urea nitrogen low

First, urea nitrogen is the main end product of human protein metabolism. Amino acid deamination produces NH3 and C02, both of which synthesize urea in the liver and metabolize 0.3g urea per gram of protein. The content of nitrogen in urea is 28 / 60, almost half. So it's easy to check.

Second: generally, the kidney is the main organ for excreting urea, and urea can be reabsorbed in each section of the tubules after filtration from the glomerulus, but the faster the flow rate of urine in the tubules, the less reabsorption, that is, the maximum clearance rate is achieved. Generally, urea nitrogen is normal in the early stage of renal function problems.

Third: if liver failure, urea nitrogen will also be low. The liver is an important metabolic organ of human body, liver failure, resulting in the normal absorption of nutrients. Another reason is that the patient's protein intake is not enough, coupled with a large amount of consumption due to abnormal liver function.

matters needing attention

Usually, if urea nitrogen is found to be low in the examination, this is actually an alarm of the body organs, which needs our attention and timely treatment.