Skip to main content
Fig. 4 | BMC Infectious Diseases

Fig. 4

From: Continuous quality monitoring in the field: an evaluation of the performance of the Fio Deki Reader™ for rapid HIV testing in South Africa

Fig. 4

Summary of RDTs (n = 470) unable to be analysed by the Deki Reader v100 during the clinical concordance field evaluation. In 10.5% of RDTs, the Deki Reader gave an error flag (unable to be analysed) rather than a result. These flags can be used for continuous quality monitoring of HCW performance and RDT quality. Under Algorithm 1 there were 266 specimens that were not analysed, of which 144 were not analysed within the required time period (HCW error). A high number (n = 107) of the Advanced Quality™ Rapid HIV (1&2) RDT were not analysed as the blood was added to the buffer well (HCW error). The remaining errors were found on the RDT (4 with no control line and 11 with irregular test or control lines). Similarly, under Algorithm 2 (n = 204), 171 flags indicated that the RDT had not been analysed within the required time period (HCW error*), with a slightly higher number of RDT errors (11 with no control line and 22 with irregular control or test lines). *While these errors are linked to HCW performance, in this case it was determined that the majority of these errors occurred on one Deki Reader, where the device drawer did not detect closure, leading to the allowable timeframe expiring; once the drawer was fixed, this error was not noted again

Back to article page