Lab

Urea Breath Test

search

Urea Breath Test, Urease Breath Test

  • See Also
  1. Helicobacter pylori Noninvasive Testing
  • Indications
  1. Dyspepsia evaluation
  2. Initial diagnosis of H. pylori
  3. Confirmation of cure after H. pylori management (test 6 weeks after)
  • Mechanism
  1. Measures urease activity
  2. Detected via nonradioactive isotope carbon 13 or carbon 14
  • Efficacy
  • Accurate for Diagnosis for H. pylori
  1. Test Sensitivity: 97%
  2. Test Specificity: 100%
  • Advantages
  1. In-office test with high accuracy
  2. Noninvasive test of H. pylori cure
  • Disadvantages
  1. Stop Proton Pump Inhibitors 2 weeks before test
  2. Patient must fast for 6 hours before test
  3. More expensive than stool antigen testing (averages $133)
  • References
  1. Calvet (2009) Clin Infect Dis 48(10): 1385-91 +PMID:19368506 [PubMed]
  2. Cutler AF (1995) Gastroenterology 109:136-41 +PMID:7540995 [PubMed]