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On the basis of diagnosis, Tuberculosis (TB) can be classified into 2 main types:

  1. Microbiologically confirmed TB
  2. Clinically diagnosed TB

Microbiologically Confirmed TB

  • Microbiologically confirmed TB refers to a presumptive TB case from which a biological specimen is positive for acid-fast bacilli/ Mycobacterium tuberculosis on smear microscopy, culture, or on a rapid diagnostic molecular test (such as Cartridge-based Nucleic Acid Amplification Test (CBNAAT)/ Truenat).
  • All such diagnosed cases should be notified at the source, regardless of whether TB treatment has started.

 

Clinically Diagnosed TB

  • Clinically diagnosed TB refers to a presumptive TB case that is not microbiologically confirmed but has been diagnosed with active TB by a clinician who has decided to give the patient a full course of anti-TB treatment.
  • This definition includes cases diagnosed on the basis of X-ray abnormalities or suggestive histology or extrapulmonary cases without laboratory confirmation.
  • Clinically diagnosed cases subsequently found to be microbiologically positive (before or after starting treatment) should be reclassified as microbiologically confirmed.

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Assessment

Question​ Answer 1​ Answer 2​ Answer 3​ Answer 4​ Correct answer​ Correct explanation​ Page id​ Part of Pre-test​ Part of Post-test​
TB is classified on the basis of diagnosis into which of the following? Microbiologically confirmed TB and clinically diagnosed TB Mono-resistant TB and poly-resistant TB Recurrent cases and previously treated cases None of the above 1 TB can be classified on the basis of diagnosis into 2 main types: Microbiologically confirmed TB and Clinically diagnosed TB.    

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