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Helicobacter pylori: Overview and Considerations for Diagnostic Testing


Slide 8

August 2010

Now, let’s move into the final portion of today’s presentation, which will be a discussion of various testing modalities for Helicobacter pylori. A list of tests offered by Mayo Medical Laboratories will be available at the end of this presentation.

Specific testing should only be performed on patients who are symptomatic; asymptomatic colonization with Helicobacter pylori can occur and cause confusion in diagnosis.

As we will discuss in a moment, tests can be divided into those that do, and do not, require invasive endoscopy. A single gold standard test for diagnosis of Helicobacter pylori infection does not exist.

Instead, we rely on selection of tests in combination with:

  • Clinical presentation of the patient
  • Pretest probability of infection
  • The availability of the test, and the cost of the test

In order to assure an appropriate selection, it is important to understand the strengths and weaknesses of each of the tests that we will discuss.



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