{{Short description|Tests done on air exhaled from lungs}} {{More medical citations needed|date=July 2014}}
{{Infobox interventions | Name = Breath test | Image = File:Breathalyzer_on_citizen.jpg |Caption = A person taking a Breathalyser test |ICD10 = |ICD9 = |MeshID = D001944 |OtherCodes = }} A '''breath test''' is a type of test performed on air generated from the act of exhalation.<ref>{{MeshName|Breath+Tests}}</ref>
Types include: *Breathalyzer – by far the most common usage of this term relates to the legal '''breath test''' to determine if a person is driving under the influence of alcohol. *Hydrogen breath test – it is becoming increasingly common for people to undertake a medical test for clinical diagnosis of dietary disabilities such as fructose intolerance, fructose malabsorption, lactose intolerance and lactulose intolerance. *The presence of ''Helicobacter pylori'' (in peptic ulcer disease) can be tested for with the urea breath test. *Exhaled nitric oxide is a breath test that might signal airway inflammation such as in asthma. *Breath tests for diseases have been developed for early detection of lung cancer, breast cancer, pulmonary tuberculosis and many others, to serve as an adjunct to existing medical tests. A trial will commence at Addenbrooke's Hospital in Cambridge, England to confirm the efficacy of these breath tests.<ref>{{cite web|url=https://scienceblog.cancerresearchuk.org/2019/01/03/a-breath-test-with-the-goal-of-detecting-multiple-cancers-is-ready-to-start-trials/|title=A breath test with the goal of detecting multiple cancers is ready to start trials|date=January 3, 2019 |first=Gabriella|last=Beer|work=Cancer Research UK|accessdate=January 6, 2019}}</ref> Phase II and Phase III clinical studies by Menssana Research, Inc. in the United States are also under way.<ref>{{cite web|title=Menssana Research, Inc.|accessdate=January 6, 2019|url=https://www.sbir.gov/sbirsearch/detail/229962|website=United States Government Small Business Innovation Research program }}</ref>
==See also== * Breath diagnostics * Breath gas analysis
==References== {{reflist}}
Category:Respiration Category:Breath tests
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