True about Mantoux test:
Correct Answer: Usually read after 48-72 hours
Description: Ans. is 'c' i.e., Usually read after 48-72 hoursConsidering other choices:(a) >10 mm is positive and 6-9 mm is Equivocal/Doubtful reaction.(b) It becomes positive after exposure to mycobacterium tuberculosis protein either in the form of infection or immunization and remains positive even after treatment.Note - Tuberculin test in Adults is used as Epidemiological marker and in Children is used as diagnostic marker.
Category:
Microbiology
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