In which case is a repeat Drug Susceptibility Test (DST) and TBMAC consultation NOT needed?

A repeat Drug Susceptibility Test (DST) and TBMAC consultation are generally required in cases where there are indications that the treatment may not be effective, such as when there is a recurrence of symptoms, lack of clinical improvement, or culture reversion. However, culture conversion, which indicates that the bacteria are no longer present in the culture and the patient is responding to treatment, suggests that the antibiotics are effective. In this scenario, the absence of active bacteria diminishes the immediate need for a repeat DST since the goal is to ensure that the treatment is working. Therefore, the need for additional testing in the context of culture conversion is not warranted, distinguishing it as the correct situation where a repeat DST and TBMAC consultation are not needed.