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17 Cards in this Set
- Front
- Back
How many tuberculosis cases occur per year in the US?
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20,000
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True/False:
Tuberculosis constitutes an important opportunistic infection among individuals infected with HIV. |
True
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What is the most sensitive and specific test available for identifying persons infected w/ Mycobacterium tuberculosis?
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Tuberculin skin test w/ purified protein derivative (PPD) administered by the Mantoux method.
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What percent of lifetime risk of developing tuberculosis disease does a infected person have if there is no intervention?
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5 percent
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What is the most effective measure to prevent the development of tuberculosis disease in a newly infected person?
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Preventive Therapy with isoniazid (INH)
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Although the preventive treatment reduces the risk of disease, does it totally eliminate it?
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No
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What is Tuberculosis?
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A disease produced by infection with Mycobacterium tuberculosis.
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What the definition of the term active disease?
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The peson has symptoms, signs, radiographic, or laboratory evidence of pulmonary, meningeal, miliary, or extrapulmonary tuberculosis.
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What is the most common form of active tuberculosis disease?
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Pulmonary tuberculosis. It causes the most concern because of the potential to transmit the infection to others by airborne route.
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What is the definition of the term tuberulosis infection?
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The person has no symptoms, signs, or radiographic evidence of active disease, but does have evidence of infection, as indicated by the presence of a positive tuberculin skin test.
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Describe the Mantoux Method of tuberculosis skin testing?
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A tuberculin skin test using a syringe and needle to inject purified protein derivative (PPD) of tuberculin.
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Describe intermediate strength dosage?
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Intermediate strength dose is is 5 tuberculin units (TU) of purified protein derivative(PPD).
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Describe low strength dosage?
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Low strength dose contains one-fifth of the intermediate strength dose (1 TU).
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Define induration?
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An area around the site of tuberculin injection that is raised and firm to touch.
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Define Tuberculin Reactor?
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A person with an area of induration to a 5 TU tuberculin skin test (or to a 1 TU tuberculin skin test).
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When should a tuberculin test be read?
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48-72 hours afer administration of skin test.
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Define a tuberculin nonreactor?
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A person with an area of induration of less than 5 mm (usually no reaction or zero mm induration) to a 5 TU tuberculin skin test.
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