How do I register my kit? April 01, 2020 00:11 Updated After you receive your kit, you can register it here. You will be prompted to enter the unique 12-digit barcode printed on the side of the collection tube. Related articles How does the Pixel by LabCorp™ process work? How long is my sample stable for testing? Who is eligible to obtain the COVID-19 at-home kit? How long does it take to get the test results back? Can I order a test for someone else?