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Topic: Urea Breath Test

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	Urea Breath Test - Digestion and digestive-related information on MedicineNet.com
		The urea breath test (UBT) is a procedure for diagnosing the presence of a bacterium, Helicobacter pylori (H. pylori) that causes inflammation, ulcers, and atrophy of the stomach.
		The urea breath test is based on the ability of H. pylori to break down urea, a chemical made up of nitrogen and carbon.
		The urea normally is produced by the body from excess ("waste") nitrogen and then eliminated in the urine.
	www.medicinenet.com /urea_breath_test/article.htm (371 words)

	Urea breath test - Wikipedia, the free encyclopedia
		The urea breath test is a rapid diagnostic procedure used to identify infections by Helicobacter pylori, a spiral bacterium implicated in gastritis, gastric ulcer, and peptic ulcer disease.
		In the subsequent 10-30 minutes, the detection of isotope-labelled carbon dioxide in exhaled breath indicates that the urea was split; this indicates that urease (the enzyme that H.
		For the two different forms of urea, different instrumentation is required; carbon-14 is normally measured by scintilation, carbon-13 by isotope ratio mass spectrometry (IRMS).
	en.wikipedia.org /wiki/Urea_breath_test (330 words)

	Urea breath test -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-14)
		For the two different forms of urea, different instrumentation is required; carbon-14 is normally measured by scintilation, carbon-13 by isotope ratio (Click link for more info and facts about mass spectrometry) mass spectrometry (IRMS).
		Accordingly the test should only be performed 14 days after stopping acid reducing medication ((Click link for more info and facts about proton pump inhibitor) proton pump inhibitors ('PPI')) or 28 days after stopping antibiotic treatment.
		Rapid urease test (done on (Examination of tissues or liquids from the living body to determine the existence or cause of a disease) biopsy specimens after (Click link for more info and facts about upper endoscopy) upper endoscopy)
	www.absoluteastronomy.com /encyclopedia/u/ur/urea_breath_test.htm (295 words)

	Breath Test
		C urea breath test have demonstrated that both the sensitivity and the specificity of the test are very high in comparison to the classic biopsy analyses, specifically > 97.5 %.
		In the Hoogeveen/Groningen study (thesis A.A. van Zwet and J.C. Thijs, 1995), the 13C urea breath test was compared to a combination of biopsy-related and serological tests in 106 patients.
		C urea breath test for the detection of Helicobacter pylori”;.
	www.simac-diagnostica.nl /breath.htm (291 words)

	Helicobacter pylori Tests
		Helicobacter pylori tests are used to detect a Helicobacter pylori (H. pylori) infection in the stomach and upper part of the small intestine (duodenum).
		The urea is tagged with radioactive carbon (carbon-14) or a form of carbon that is not radioactive (carbon-13).
		The urea breath test for Helicobacter pylori is not recommended for children or for pregnant or breast-feeding women because of exposure to a small amount of radioactivity.
	my.webmd.com /hw/heartburn/hw1531.asp (2134 words)

	Pylobactell - Torbet Laboratories C-Urea breath test - Pylobactell (Site not responding. Last check: 2007-10-14)
		C Urea breath tests has been recommended by the European Society for Primary Care Gastroenterology; European Helicobacter Pylori Study Group for use before and after eradication treatment.
		C Urea breath test in the management of dyspeptic patients under 45 years (Current European concepts in the management of helicobacter pylori infection.
		Tests that do not have a current marketing authorization may be used in the EU on a named patient basis only and for clinical investigations.
	www.breathlab.com /pylobactell/index.php (254 words)

	Breath Test for Helicobacter Pylori (H. Pylori) (L - 40)
		The breath test for Helicobacter pylori (H. pylori) is a non-invasive diagnostic procedure utilizing analysis of breath samples to determine the presence of Helicobacter pylori.
		The Carbon-14 breath test is a qualitative and non-invasive method for the diagnosis of H. pylori.
		If the test is administered during the overall evaluation of the patient for the clinical problem requiring the test, the time and effort of the physician administering the test should be taken into consideration in determining the level of E/M service to be billed.
	www.cignamedicare.com /partb/lmrp/tn/cms_fu/98-04-01.htm (1052 words)

	Helicobacter pylori Urea Breath Test (Site not responding. Last check: 2007-10-14)
		Instruct the patient to breath normally, then take a deep breath, pause holding their breath for a full second (counting one, one thousand) then exhale into the mouthpiece of the bag.
		Use of 'direct' tests lead to a reduction in unnecessary treatment which is important because of the continuing concern regarding antimicrobial treatment and emergence of antibodiotic resistance.
		These tests each have the added feature of being able to be used as a test of cure when administered a month or more after completion of erradication therapy.
	www.labcorp.com /datasets/labcorp/html/chapter/mono/nf10004640.htm (479 words)

	Use of LARA-urea breath test in the diagnosis of Helicobacter pylori infection in children and adolescents: A ...
		The primary aim of the present study was to prospectively evaluate a novel urea breath testing method in children undergoing diagnostic assessment of dyspeptic symptoms and secondarily to consider the roles of other noninvasive tests in these children.
		C urea breath testing was performed on children presenting with upper gastrointestinal symptoms for diagnostic endoscopy.
		Breath testing protocols require standardization; for instance, the addition of a test meal may not be necessary in older children.
	www.pulsus.com /Gastro/17_12/day_ed.htm (809 words)

	Breath test for helicobacter pylori - Patent 5848975
		To optimize the.sup.14 C-urea breath test for Helicobacter pylori (a) a collection method for alveolar breath samples, (b) varying the post-dosage breath collection time and (c) varying the concentrations of KOH in the liquid trap employed for the capture of.sup.14 CO.sub.2 are employed.
		The test is well-suited to rapid diagnostic testing in ambulatory patients who require screening for the etiology of their dyspepsia, or follow-up after treatment of H. pylori infection with antibiotics; see Atherton J. and Spiller R. C.: The urea breath test for Helicobacter pylori.
		Breath tests were performed in the recovery area at least 30 min after the conclusion of the EGD when patients had recovered their gag reflexes.
	www.freepatentsonline.com /5848975.html (2385 words)

	BioMed Central \| Full text \| 13C-Urea breath test threshold calculation and evaluation for the detection of ...
		Invasive tests for the detection of H. pylori are usually performed in biopsy specimens of the stomach (histological staining, bacterial culture and the rapid urease test) or in the blood (anti-HP antibodies).
		Recently, a correlation of UBT values with the children's age was proposed, while the portion of explained variance was not given and the significance might be explicable by the large numbers (1016, of which 149 were histologically validated [25]).
		C-urea breath test for the diagnosis of Helicobacter pylori infection.
	www.biomedcentral.com /1471-230X/2/12 (3127 words)

	7.2 Questions (Site not responding. Last check: 2007-10-14)
		The test was negative in one patient with cardial tumour in which histology of the resected specimen was also negative for the bacteria.
		The 14C-urea breath test is a highly sensitive method for detecting the presence of H. pylori even in gastric adenocarcinoma irrespective of the stage.
		For IRMS analysis, breath samples of urea breath tests (538 tests) were stored in glass tubes and were later analysed in the mass spectrometry laboratory.
	www.wagner-bremen.de /7_0_Database/7_2_Custumers__Quest/body_7_2_custumers__quest.html (1890 words)

	Urea breath test as a non-invasive.. (Site not responding. Last check: 2007-10-14)
		Urea breath test as a non-invasive diagnostic method in Helicobacter pylori infection
		Recently non invasive, specific, sensible, easy to perform and patient’s well accepted methods had been developed known as breath test, based on the hydrolisis of labelled urea by Helicobacter pylori urease enzyme, to release ammonia and bicarbonate.
		Labelled CO reaches the bloodstream and the lungs, from where can be collected into the breath for quantification.
	www.imbiomed.com.mx /Gastro/Gav63n3/english/Zge83-03.html (180 words)

	Nurse-led dyspepsia clinic using the urea breath test for Helicobacter pylori
		A negative breath test was defined as a delta (δ) 13CO2 value of 0–2, an indeterminate test had a δ 13CO2 value of 2–4 and a definite positive breath test had a δ 13CO2 value of >4.
		UBT positivity was not related to age or gender.
		The Helicobacter pylori breath test: a surrogate marker for peptic ulcer disease in dyspepsia patients.
	www.nzma.org.nz /journal/116-1176/479 (3754 words)

	Blood urea test (Site not responding. Last check: 2007-10-14)
		Blood urea concentrations were measured, using an enzymatic UV method with urease and Normality of distribution was tested with the Shapiro-Wilk’sW test.
		BUN (blood urea nitrogen): This test is used to measure liver function and indirectly to assess renal function and glomerular filtration rate.
		Test is often used as an index of kidney function, Helps confirm diagnosis of kidney disease and assesses the extent of dehydration.
	getinfoeasy.com /q/blood-urea-test.html (1105 words)

	Blood, urine, stool, breath, money, and Helicobacter pylori -- VAIRA and VAKIL 48 (3): 287 -- Gut
		in the 13C-urea breath test for the detection of Helicobacter pylori infection.
		Archimandritis A. Diagnosis of Helicobacter pylori infection by HpSA test.
		Accuracy of the stool antigen test in the diagnosis of Helicobacter pylori infection in the pre-treatment assessment and in patients on omeprazole therapy.
	gut.bmjjournals.com /cgi/content/full/48/3/287 (2558 words)

	SMJ
		Prevalence of H. pylori colonisation was measured by the 13C-urea breath test and socioeconomic status was measured by the Carstairs and Morris index of deprivation.
		Breath samples were obtained at 30 and 45 minutes after consumption of the dose of urea.
		A positive urea breath test, indicating current H. pylori colonisation, was recorded in 164 of the 626 children (26.2%).
	www.smj.org.uk /1104/pylori.htm (1597 words)

	Articles - Urea (Site not responding. Last check: 2007-10-14)
		Because urea is produced and excreted at a roughly constant rate, high levels of urea in the blood indicate a problem with the removal or, more rarely, the over-production of urea in the body.
		Urea levels can be increased also in some malignant blood disorders (e.g., leukaemia and multiple myeloma).
		Isotopically-labeled urea (carbon 14 - radioactive, or carbon 13 - stable isotope) is used in the Urea breath test, which is used to detect the presence of Helicobacter pylori (H.
	www.ccomplete.com /articles/Urea (455 words)

	University of Miami School of Medicine - Glossary - Urea breath test (UBT)
		Urea breath test (UBT): The urea breath test (UBT) is a procedure for diagnosing the presence of a bacterium, Helicobacter pylori (H. pylori) that causes inflammation, ulcers, and atrophy of the stomach.
		The urea breath test is based on the ability of H. pylori to break down urea, a chemical made of nitrogen and carbon, that normally is produced by the body from excess ("waste") nitrogen and then eliminated in the urine.
		Samples of exhaled breath are collected, and the isotopic carbon in the exhaled carbon dioxide is measured.
	www.med.miami.edu /glossary/art.asp?articlekey=5906 (257 words)

	The Urea Breath Test
		The urea breath test is used to detect Helicobacter pylori (H. pylori), a type of bacteria that usually infects the stomach and is a main cause of ulcers in both the stomach and duodenum (the first part of the small intestine).
		During the test, a tablet containing urea (a chemical made of nitrogen and carbon) is swallowed and then the amount of exhaled carbon dioxide is measured.
		Test results are usually available two days after the test is completed.
	my.webmd.com /content/article/90/100629.htm (305 words)

	Pharmaceutical interference with the [14C]carbon urea breath test for the detection of Helicobacter pylori infection
		Testing the biopsy sample for the presence of urease is a much simpler, quicker and less expensive test than either culture or histology and has high sensitivity (90 to 95 %) and specificity (98 to 100%).
		Serology tests detect the antibodies (determined by using radioimmunoassay techniques) produced in response to the infection and are useful to determine whether the patient has been exposed to H.
		The test is based on the detection of the enzyme urease, which is secreted by the bacteria to convert urea to ammonia.
	www.ualberta.ca /~csps/JPPS3(2)/D.Abrams/urea.htm (2834 words)

	Helicobacter pylori Urea Breath Test (UBiT®') from Quest Diagnostics: Differential diagnosis of patients with peptic ... (Site not responding. Last check: 2007-10-14)
		The stool antigen and urea breath tests have similar accuracy and are preferred when endoscopy is not clinically indicated.
		This urea breath test indirectly detects the presence of H pylori-associated urease by measuring CO in the patient's breath.
		Testing is not recommended for asymptomatic individuals lacking a history of peptic ulcer disease or for those on long-term proton pump inhibitor (PPI) therapy for gastroesophageal reflux disease (GERD).
	www.questdiagnostics.com /hcp/topics/gastroent/hpylori_breath.html (754 words)

	Clinical laboratory service and kits for the Urea Breath Test to detect Helicobacter pylori (H. pylori)infection.
		The Urea Breath Test is a cost effective, non-invasive, highly accurate 15-minute test to detect Helicobacter pylori (H. pylori) infection.
		The test is ideal for investigation of gut pain in patients that have previously undergone an endoscopy, screening bariatric surgery candidates, and to confirm the outcome of H. pylori eradication therapy.
		After administrating the test, the breath specimens are sent to Metabolic Solutions using the prepaid US Priority Mail envelope found in each kit.
	www.metsol.com /ubt_home.htm (335 words)

	The Helicobacter Foundation
		In the C14-urea breath test, the breath sample is read in a scintillation counter.
		In the C13-urea breath test the breath sample is read in a mass spectrometer (MS) rather than a liquid scintillation counter (LSC).
		A baseline breath sample is collected (you blow into a bag or tube), then you eat a small, high calorie, meal ("ensure pudding" in the USA, it is somewhat like custard).
	www.helico.com /diag_breath.html (403 words)

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