breath test

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Related to breath-test: Urea breath test, Hydrogen Breath Test

breath test

any diagnostic test in which endogenous or exogenous materials are measured in samples of breath as a means of identifying pathologic processes; examples include hydrogen breath testing for lactose intolerance or urea breath testing to detect gastric colonization with Helicobacter pylori.
Synonym(s): breath analysis

breath test

any of various tests in which a person's breath is analyzed for presence of something abnormal. Subgroups called the 13C breath tests and 14C breath tests involve administration of organic compounds labeled with carbon 13 (heavy carbon) or carbon 14 (radioactive carbon) and measuring the subsequent levels of labeled carbon dioxide in the patient's breath; the labeled compound may be found to be metabolized normally, too fast, or too slow in the GI tract.

breath test

Gastroenterology
Any of a number of clinical tests used to evaluate malabsorption, in which a food containing a substance emitting low levels of radioactivity is ingested and, if malabsorbed, is exhaled through the lungs.

Lab medicine
The testing of the gases exhaled from a patient for the presence of volatile organic compounds (VOCs).

breath test

Chest medicine Any of a number of clinical tests used to evaluate malabsorption, in which a food containing a substance emitting low levels of radioactivity is ingested and, if malabsorbed, is exhaled through the lungs. See 2H-lactose test, 14C-xylose test GI disease See Urea breath test Lab medicine The testing of gases exhaled from a Pt for the presence of volatile organic compounds–VOCs.

breath test

(breth test)
1. Any diagnostic procedure in which endogenous or exogenous materials are measured in samples of breath as a means of identifying pathologic processes (e.g., hydrogen breath testing for lactose intolerance, urea breath testing to detect gastric colonization with Helicobacter pylori).
2. A test to measure alcohol consumption.

breath test

(breth test)
Any diagnostic test in which endogenous or exogenous materials are measured in samples of breath as a means of identifying pathologic processes.
References in periodicals archive ?
Albert Johnson, a defense attorney and longtime critic of breath-test evidence.
Cupar Sheriff Court heard Farrer, whose breath-test reading was 192 when the legal limit is 35, twice failed to meet social workers.
The breath-test technology relies on the idea that the biology of tumours can lead to the production of specific "volatile organic compounds", combinations of chemicals unlikely in a healthy person.
Association of Chief Police Officers in Scotland rules state police must breath-test all drivers involved in collisions.
Police say that this encourages drivers to drink up to the limit but that the breath-test kits are so inaccurate they give false readings more often than not.
A West Midlands Police spokesman said: "All our traffic cars and Zulus carry breath-test kits but not the pandas because it is not cost-effective.
He told Gloucester magistrates he had been out on Christmas Eve for two to three pints of lager and before driving he had used a commercial breath-test kit.
Sheriff Craig Caldwell found that the Intoximeter breath-test machine is accurate and lawful.
But when the case was called yesterday, her solicitor asked for the guilty plea to be withdrawn due to the breath-test row.
The pilot insisted he was completely sober and had had nothing to drink - but police officers were called in to carry out a breath-test.
They want to new attempts to stamp out the road menace, after a massive breath-test blitz failed to deter hardcore offenders.
A WOMAN whose breath-test showed she was almost 10 times over the drink-drive limit was jailed yesterday.