Validity (Accuracy) of rapid urease test
(RUT), Gram staining, histopathology and ELISA IgG antibody were compared with culture in terms of sensitivity, specificity.
Identification was done based on Gram stain of the colony, positive oxidase, catalase and urease test
Dual specimens increase the diagnostic accuracy and reduce the reaction duration of rapid urease test
False-negative urease tests
have been reported in association with several factors.
Comparison of rapid urease tests
, staining techniques, and growth on different solid media for detection of Campylobacter pylori.
Based on the same principle as the urea breath test, rapid urease tests
detect the presence of bacterial urease in gastric mucosal biopsies.
Each patient's infection status had previously been determined by using a panel of six tests: (a) rapid urease test
(CLO[R] test only), (b) antral histology with hematoxylin and eosin stain, (c) antral histology with silver stain, (d) ELISA for IgG antibody, (e) ELISA for IgA antibody, and (f) [[sup.
Eradication is defined as absence of H pylori in at least four (two from the fundus and two from the antruml samples taken from the gastric mucosa and a negative urease test
pylori by using endoscopic biopsy specimens--(1) Rapid urease test
(2) Grams staining (3) culture--most difficult yet gold standard with high specificity.
The purpose of this study was threefold: (1) to determine the prevalence of H pylori in family practice patients with dyspepsia that is unresponsive to standard empiric therapy; (2) to evaluate the accuracy of an office-based rapid urease test
(also known as the campylobacter-like organism [CLO] test) in detecting the presence of H pylori compared with histologic evaluation; and (3) to assess the accuracy of an office-based serology test for IgG compared with reference laboratory serology.
Histological evaluation, culture, polymerase chain reaction (PCR) and rapid urease tests
are typically performed on tissue obtained at endoscopy.