Assessing Quality Indicators for the COVID-19 RTPCR in a Molecular Laboratory

A quality indicator is a tool that enables the user to quantify the quality of a selected aspect of care by comparing it with a set benchmark. The objective of this study was to review quality indicators for COVID-19 molecular testing at S.S. Institute of Medical Sciences and Research Centre and to compare with the predefined quality indicators in order to improve the performance of the molecular laboratory and to initiate the corrective and preventive measures. Over the period of one year we assessed different quality indicators collected from the molecular laboratory of a tertiary care hospital in Central Karnataka which has processed 36000 throat swabs for the diagnosis of COVID-19. Twelve quality indicators under pre-analytical, analytical and post analytical stage were assessed for the quality by referring it with the select criteria. Missing test request form / specimen (1.36/1000) was the most common inconsistency observed during the assessment of pre-analytical indicators followed by specimen inadequacy (0.194/1000), duplicate specimen referral forms (SRF) generated in ICMR portal (0.277/1000) and color change in the viral transport medium. In analytical phase, non-conformity with QC was seen in 2.83/1000 samples. In post analytical phase, excessive turnaround time was seen in 0.75/1000 samples followed by revised reports due to transcription error (0.38/1000) and duplicate reports (0.13/1000). The results of assessment of quality indicators in the molecular laboratory explicitly supports that laboratory could keep the incidence of errors to the minimum level by following proper corrective and preventive measures. Thus, catering quality laboratory services during devastated COVID pandemic year.