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Urea (urea nitrogen) in the serum

 
, medical expert
Last reviewed: 05.07.2025
 
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Urea is the end product of protein metabolism in the body. It is removed from the body by glomerular filtration, 40-50% of it is reabsorbed by the tubular epithelium of the kidneys and is actively secreted by tubular cells. In pathology, shifts in the concentration of urea in the blood depend on the ratio of the processes of its formation and excretion.

Reference values (norm) of urea (urea nitrogen) concentration in blood serum

Urea content

The indicator under study

Mmol/l

Mg/dl

Urea

Urea nitrogen

2.5-8.3

2.5-8.3

15-50

7.5-25

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