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 ?
Meanwhile, district attorneys across the state are either not using breath-test evidence or seeking continuances of drunken-driving cases until the problem is resolved.
However, another scientist said it was unlikely a fully functioning and reliable breath-test would be available soon for the general public.
Things can normally be sorted out within a few minutes, either by calling up another vehicle with a breath-test kit, or, failing that, driving to a police station.
Readings from handheld breath-test kits are no defence in court.
He vowed to appeal and the breath-test equipment will now go on before a panel of High Court judges.
A BRITISH Airways pilot's breath-test has proved positive after his arrest in a plane's cockpit on suspicion of failing "zero tolerance" alcohol rules.
It is believed to be the highest breath-test reading in Britain.
The percentage of drivers found to be over the limit in police breath-tests carried out during their summer drink-drive campaign, has risen compared with the same period last year.
The police spokeswoman said, 'We believe the figures do not contain all the negative result breath-tests we carried out, therefore we do not feel it is fair to compare the 2002 figures to those in 1997.
CLEVELAND Police today welcomed the results of a summer drink drive campaign with fewer positive breath-tests than last year.
BOOZY yobs could be banned from drinking and jailed if they fail random breath-tests.