Directly Observed Therapy (DOT) is associated with which of the following benefits?

Directly Observed Therapy (DOT) is associated with which of the following benefits?

• A. It guarantees ingestion of all doses
• B. It eliminates the need to monitor for treatment failure
• C. It has no effect on drug resistance
• D. It decreases acquisition and transmission of drug-resistant tuberculosis and increases treatment success in HIV-positive patients

Answer: (D)

Directly observed therapy helps ensure that TB meds are taken consistently over a long course, which is crucial because incomplete or inconsistent treatment promotes the emergence of drug resistance and prolongs infectiousness. By supervising intake, DOT reduces missed doses, leading to higher treatment completion rates and better sputum conversion, which in turn lowers both the acquisition of drug-resistant TB and its transmission in the community. In patients with HIV, TB therapy is more complex and adherence gaps have even greater negative impact, so supervised dosing improves overall treatment success in this group. It does not guarantee every dose is ingested, and monitoring for treatment failure is still necessary, but DOT's impact on adherence translates into fewer drug-resistant cases and better outcomes overall.

Directly observed therapy helps ensure that TB meds are taken consistently over a long course, which is crucial because incomplete or inconsistent treatment promotes the emergence of drug resistance and prolongs infectiousness. By supervising intake, DOT reduces missed doses, leading to higher treatment completion rates and better sputum conversion, which in turn lowers both the acquisition of drug-resistant TB and its transmission in the community. In patients with HIV, TB therapy is more complex and adherence gaps have even greater negative impact, so supervised dosing improves overall treatment success in this group. It does not guarantee every dose is ingested, and monitoring for treatment failure is still necessary, but DOT's impact on adherence translates into fewer drug-resistant cases and better outcomes overall.