What conditions require multi-drug resistant tuberculosis testing

When diagnosed tuberculosis after receiving anti-tuberculosis treatment, after 1-2 months of treatment, the focus has no obvious absorption, or even increased, and sputum bacteria do not show negative, continuous positive, poor treatment effect patients, need to carry out drug resistance screening. At this stage, sputum bacterial resistance gene screening, it takes 7-10 days, traditional sputum culture screening, it takes 2 months. Screening can identify multi-drug resistant TB patients, so anti-TB regimen adjustments can reduce the length of treatment for patients and improve treatment outcomes.