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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:blood urea nitrogen level
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Accession:CMO:0000049 term browser browse the term
Definition:The level of urea in the blood in terms of nitrogen content; 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 can be found in urine, blood, and lymph.
Synonyms:related_synonym: BUN level

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plasma urea nitrogen level term browser
Symbol Object Name Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
Q Rf62 Renal function QTL 62 IDA RGD PMID:24192394 RGD:8552897 NCBI chr 4:31,825,200...43,414,792 JBrowse link
Q Rf63 Renal function QTL 63 IDA RGD PMID:24192394 RGD:8552897 NCBI chr13:74,568,378...82,995,671 JBrowse link

Related Phenotype Data for Term "blood urea nitrogen level" (CMO:0000049)

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

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  clinical measurement 2369
    blood measurement 439
      blood chemistry measurement 426
        blood urea nitrogen level 2
          plasma urea nitrogen level 2
          serum urea nitrogen level 0
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