COVID-19 test results are expected within 48 hours of testing. However, lab tests are processed by Ipsum Diagnostics and subject to Ipsum Diagnostics’s turnaround schedule, which can fluctuate with demand and other factors. DC Pulmonary Medicine will prepare your test sample for Ipsum Diagnostics on the day it is collected, but cannot make assurances or guarantees of Ipsum Diagnostics’s turnaround time for test results.