Send us a Message

Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   


The Clinical Measurement Ontology (CMO), Measurement Methods Ontology (MMO), and Experimental Condition Ontology (XCO) are currently being developed at the Rat Genome Database. For more information about these vocabularies please see Shimoyama et al. Three ontologies to define phenotype measurement data. Front Genet. 2012;3:87. Epub 2012 May 28 or contact us (

Term:serum urea nitrogen level
go back to main search page
Accession:CMO:0000587 term browser browse the term
Definition:The level of urea in terms of nitrogen content found in a specific volume of serum, i.e. blood plasma from which clotting factors have been removed. The urea nitrogen level is converted to urea concentration by multiplying by 60/28 or 2.14. Urea is the chief nitrogenous end product of protein metabolism in whole blood.Urea is formed in the liver from amino acids and from ammonia compounds and is found in urine, blood, and lymph.
Synonyms:broad_synonym: BUN level

show annotations for term's descendants           Sort by:

Related Phenotype Data for Term "serum urea nitrogen level" (CMO:0000587)

Rat Strains:
Clinical Measurements:
Experimental Conditions:
Measurement Methods:

Term paths to the root
Path 1
Term Annotations click to browse term
  clinical measurement 2369
    blood measurement 443
      blood chemistry measurement 426
        blood urea nitrogen level 2
          serum urea nitrogen level 0
paths to the root