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Quick Medical Diagnosis & Treatment
Helicobacter pylori Gastritis
Sections:
Helicobacter pylori Gastritis, Key Features, Essentials of Diagnosis, General Considerations, Demographics, Clinical Findings, Symptoms and Signs, Differential Diagnosis, Diagnosis, Laboratory Tests, Noninvasive testing for H pylori
, Endoscopic testing for H pylori
, Diagnostic Procedures, Treatment, Medications, Outcome, Follow-Up, Prognosis, When to Refer, When to Admit, References,
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Topics Discussed: helicobacter pylori gastritis.
Excerpt: | |  Serologic tests no longer endorsed because they are less accurate than other noninvasive tests
Fecal antigen immunoassay and 13C-urea breath tests | | – Have sensitivity and specificity of > 95% – Positive test indicates active infection – Although more expensive than serology, they may be more cost-effective because they reduce unnecessary treatment in patients without active infection |
Laboratory-based serologic ELISA test has overall accuracy of 80% Proton pump inhibitors significantly reduce the sensitivity of urea breath tests and fecal antigen assays (but not serologic tests) and should be discontinued 7–14 days prior to testing |
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