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Urea (Urea Nitrogen) in the urine

 
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Last reviewed: 18.10.2021
 
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Urea excretion in urine is proportional to the protein content in the diet, as well as the metabolic rate of endogenous proteins. Urea excreted in urine is approximately 90% of excreted nitrogen metabolites from the body. In adults in a state of nitrogen equilibrium, the release of 500 mmol of urea (or 14 g of urea nitrogen) per day corresponds to the consumption of 100 g of protein.

Reference values (norm) of urea (urea nitrogen) in urine

The indicator studied

Urea content in urine

Mmol / day

G / day

Urea

Nitrogen of urea

430-710

430-710

24-40

12-20

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