Abstract
In Ethiopia, specimens of presumptive drug resistant tuberculosis cases are transported by courier system from district sample collection centers to reference laboratories. It is essential to track the effectiveness of the referral system and identify challenges in order to take timely and appropriate actions. We assessed turnaround time and quality of specimens, and explored challenges of the specimen referral system in Amhara region, Ethiopia, 2017. With mixed methods, we retrospectively examined 385 randomly selected presumptive drug resistance TB specimens, and interviewed 53 purposively selected key informants from laboratories and post offices. We calculated median TAT and proportion of acceptable quality. We analyzed qualitative data thematically. Of the 385 specimens, 94.5% (364/385) had acceptable quality at arrival in the reference laboratories. All the 364 specimens had result. Three - fourth (76.1%) of results were dispatched to the referring health facilities within the recommended turnaround time. Ineffective communication and lack of feedback among institutions were mentioned as challenges. The postal service was effective in keeping quality and majority of test results were timely delivered. Yet, there were operational challenges. Therefore, effective communication, using dedicated vehicle for specimen shipment and awareness creation on specimen collection and handling are recommended.
Highlights
Despite the rapid scale-up in recent years, rapid molecular tests like GeneXpert for the diagnosis of tuberculosis (TB) are not yet widely available in every health facility
Quantitative findings Referral pattern and quality of drug resistance TB specimens We investigated a total of 385 presumptive drug resistance TB specimens that were transported by the postal system
Out of 356 samples sent for Drug Susceptibility Test (DST), 335 (94.1%) had acceptable quality
Summary
Despite the rapid scale-up in recent years, rapid molecular tests like GeneXpert for the diagnosis of tuberculosis (TB) are not yet widely available in every health facility. One hundred fifty DSCCs collect sputum specimens of presumptive drug resistance TB cases from remote health centers, called referring laboratories. Specimens for DR-TB testing are transported using the postal service to DST centers (for Gene Xpert and LPA) and regional laboratories (for culture) . The process consists of several steps: DSCCs collect and pack specimens from presumptive drug resistance TB cases They put a tracking log on the package. In Ethiopia, specimens of presumptive drug resistant tuberculosis cases are transported by courier system from district sample collection centers to reference laboratories.
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