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Urea (urea nitrogen) in the serum
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 |