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Questions and Answers
Which test is recommended by WHO for confirmation of diagnosis and rifampicin resistance?
Which test is recommended by WHO for confirmation of diagnosis and rifampicin resistance?
- Xpert Ultra (correct)
- Sputum smear microscopy
- GeneXpert
- Tuberculosis culture test
What is the specificity of Xpert Ultra for the diagnosis of active TB in patients with recurrent TB?
What is the specificity of Xpert Ultra for the diagnosis of active TB in patients with recurrent TB?
- 90%
- 85%
- 95%
- 80% (correct)
Why is the specificity of Xpert Ultra reduced in patients with previously treated TB?
Why is the specificity of Xpert Ultra reduced in patients with previously treated TB?
- Due to a technical error in the test
- Due to patient non-compliance
- Due to a mutation in the TB bacteria
- Due to the presence of dead tuberculous bacilli (correct)
For patients with suspected recurrent TB who completed TB treatment >5 years, what recommendation did WHO give for Xpert Ultra?
For patients with suspected recurrent TB who completed TB treatment >5 years, what recommendation did WHO give for Xpert Ultra?
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For patients with suspected recurrent TB who completed TB treatment within the past 5 years, what recommendation did WHO give for Xpert Ultra?
For patients with suspected recurrent TB who completed TB treatment within the past 5 years, what recommendation did WHO give for Xpert Ultra?
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