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How reliable are the reports of IgG and IgM for extrapulmonary TB of lymph nodes ?

For Extrapumonary TB of Lymph nodes, how reliable are results of IgG & IgM ?
Asked On : Fri, 24 Feb 2012
Answers:  1 Views:  161
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Question is related to
Diseases and Conditions
Lab Tests
Pathologist and Microbiologist 's  Response
Hello. Welcome to HCM,
The IgG and IgM detected in serum are ELISA tests performed for detection of antibodies against Mycobacterium tuberculosis antigens in blood. Depending on the manufacturer, most tets have high senstivity and are considerably specific for detection of tuberculosis. Also, in a so-called endemic country like India, the cut off value is slightly lower than western countries.
So, you can take the test as considerably reliable, done from a good lab, and start treatment depending on your physician's advice.
take care.
Answered: Fri, 24 Feb 2012
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