breath test

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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 ?
It is known that venous blood concentration and breath concentration for a given metabolite are directly connected, which supports the use of breath analysis as a surrogate for plasma measurements (36, 37).
His point: Breath analysis is not just about detecting the presence or absence of molecules.
Breath analysis could reduce lung infection diagnosis times from weeks to minutes, the Vermont researchers said.
To that end, we are now collaborating with colleagues to sample patients in order to demonstrate the strengths, as well as limitations, of breath analysis more comprehensively.
A new study recently published in The British Journal of Surgery has demonstrated that a simple breath analysis could be used for colorectal cancer screening.
When the designated drivers leave the club, they are given the option of undergoing a breath analysis to check if they lived up to their commitment.
Nanostructures are already used in a diverse range of advanced medical devices such as breath analysis sensors for detecting diabetes; low energy-consuming, high-brightness televisions and computer displays; drug delivery systems which combat cancer; high strength, lightweight composites for aircraft; wearable electronics and energy harvesting.
For asthma patients, an exhaled nitric oxide (NO) breath analysis will facilitate diagnosis of the disease.
Current and future uses of breath analysis as a diagnostic tool.
Sensing the wide-array of applications possible with the small form factor and low development costs in incorporating the chemical sensing property into their research hardware, GE proposed to use this technology in Bio-hazard monitoring and health safety operations like emission monitoring at power plants, food & beverage safety monitoring, domestic water purification testing, breath analysis for detection of diseases and wound healing assessment.
Winners include research projects on a cost-effective testing of blood samples using cell phones, malaria detection through a battery-powered finger scanner, detecting pneumonia through breath analysis, a "mop" (in the form of a vaginal gel containing zeolite nanoparticles) to rob sperm of the energy needed for motility, a reversible long-lasting male contraceptive pill, and insect eating plants that can reduce the population of malaria transmitting mosquitoes.
The technology, called Breath Analysis, detects gases in exhaled breath for analysis.