After the sample has been collected and labeled, it is transported to the lab to be logged in. Depending on the test needed and where you have the sample drawn, your blood may be simply transported to the lab where the analysis is perfomed or flown across country to a lab that specializes in a particular blood analysis.
Once the specimen arrives in the lab, however near or far away, your blood sample will be logged into the laboratory's tracking system. The tube label contains all the information necessary to ensure that the sample is run through the appropriate tests and the eventual results are matched to your name. Usually, a form listing not only your information, but also your doctor's name and address is sent with the sample so the results can be sent back to the doctor.