RESPIRATORY
OLD TUBERCULOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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All respiratory symptomatic or probable cases
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As a control for patients already diagnosed with tuberculosis
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Suspected extrapulmonary tuberculosis
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None of the above
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Detailed explanation-1: -A clinically diagnosed TB case is one who does not fulfil the criteria for bacteriological confirmation but has been diagnosed with active TB based on other clinical evidence such as chest x-ray and where a clinician has decided to give the patient a full course of TB treatment.
Detailed explanation-2: -Bacteriological confirmation of TB is necessary to test for resistance to first-line and second-line anti-TB drugs; such testing can be done using rapid molecular tests, phenotypic susceptibility testing or reference-level genetic sequencing ( 2).
Detailed explanation-3: -The Mantoux tuberculin skin test (TST) or the special TB blood test can be used to test for M. tuberculosis infection.
Detailed explanation-4: -good ventilation: as TB can remain suspended in the air for several hours with no ventilation. natural light: UV light kills off TB bacteria. good hygiene: covering the mouth and nose when coughing or sneezing reduces the spread of TB bacteria.