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NBME block 1 q 44 - kingston99
#1
A 54 yo woman who works as a nurse comes to the physician for routine tuberculosis screening. A sample of her whole blood is incubated within a mixture of the synthetic peptides representing two proteins of the suspected pathogen. Three days later. supernatant is collected for evaluation. Measurement of which of the following cytokine concentration is most likely to indicate a positive result?

Granulocyte macrophage colony stimulating factor
Interferon alpha
Interferon gamma
Interleuking 4
interleukin 10
Transforming growth factorr betta

answer is not A
please explain the answer
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#2
ans- Interferon gamma.

Stimulation of CD4 TH1 cells in tuberculosis

CD4 TH1 secrets Interferon gamma
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