How does the service work? Hollie 14 April 2023 11:15 Updated We have 4 different ways of collecting a blood sample. Learn more here about how the service works. Related articles I want to check my thyroid - what's the best test for me? How do I activate my kit? I need help choosing a test Can I upgrade to a clinic or nurse visit? What should I do with my sample collection kit if it has expired? Comments 0 comments Article is closed for comments.