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AttributesValues
rdf:type
rdfs:label
  • Urea C-14
rdfs:subClassOf
Concept_In_Subset
Semantic_Type
  • Organic Chemical
  • Indicator, Reagent, or Diagnostic Aid
Preferred_Name
  • Urea C-14
UMLS_CUI
  • C1710583
CAS_Registry
  • 594-05-8
FDA_UNII_Code
  • WBZ6M63TEE
Contributing_Source
  • FDA
Chemical_Formula
  • CH4N2O
Legacy_Concept_Name
  • Urea_C-14
FULL_SYN
  • UREA C-14PTFDAWBZ6M63TEE
  • PytestBRNCI
  • C14 UreaSYNCI
  • Urea C-14PTNCI
DEFINITION
  • A radiolabelled urea molecule used to diagnose stomach ulcers caused by Heliobacter pylori. In the presence of H. pylori, urea C-14 is metabolized by urease to produce ammonia and radioactive carbon dioxide at the interface between the gastric epithelium and lumen. The radioactive carbon dioxide is absorbed in the blood and is detected when exhaled in the breath.NCI
code
  • C47780
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