Targeted testing and the diagnosis of latent tuberculosis infection and tuberculosis disease
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Targeted testing and the diagnosis of latent tuberculosis infection and tuberculosis disease

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    • Description:
      In this module, you will learn about targeted testing and the diagnosis of latent tuberculosis (TB) infection (LTBI) and TB disease. Targeted testing is a TB control strategy that is used to identify people who have LTBI and are at high risk for developing TB disease and would benefit from treatment. LTBI is diagnosed with the Mantoux tuberculin skin test (TST) or an interferon-gamma release assay (IGRA), such as the QuantiFERON®-TB Gold In-Tube test (QFT-GIT) or the T-SPOT®. TB test (T-Spot).

      It is important to medically evaluate people who have symptoms of TB disease; if they are found to have TB disease, they need treatment to be cured and to help stop the transmission of TB to others. For this reason, the diagnosis of TB disease is crucial to controlling the spread of TB in homes and communities. In most cases, TB disease is diagnosed with certain laboratory tests. For patients who may have pulmonary TB disease, a chest x-ray is also useful for diagnosis.

      Note: The Self-Study Modules on Tuberculosis are a series of educational modules designed to provide information about TB in a self-study format. The target audiences include outreach workers, nurses, physicians, administrators, health educators, and students from a variety of settings. The Modules should not be used as a substitute for guidelines and should not be used for patient care decisions.



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