20220503 15292000 1.0 TRUE ReOpen DC Mean Test Turnaround Time Mean test turnaround time shows us how quickly the processing and reporting of labs takes. The more quickly a person's results are known, the more quickly public health action can be taken to isolate cases and quarantine contacts. This data represents a seven day average of the mean test turnaround time for labs reporting COVID-19 diagnostic tests to DC Health. Daily reporting reflects ongoing data quality improvements and is subject to change.