How soon can I expect to receive my kit? April 27, 2022 15:23 Updated Kits are shipped via USPS. You should expect to receive your kit within 2-5 business days after completing your purchase. Related articles How do I use the blood collection device? How does Labcorp OnDemand® work? How long is my blood sample stable after it is collected? How many times do I need to test? How do I register my kit?