In order to provide the safest blood products available, all potential blood donor dogs are thoroughly screened. The first test is a blood typing test to determine what blood type they have. Just like humans, dogs have different blood types. We look for Universal, Negative and Positive. Positive is the most common blood type. There is a great need for Universal and Negative. Some breeds, such as greyhounds and pit bulls, have a higher percentage of universal donors in the population. We also check blood work to make sure they are overall healthy. We run complete blood count, biochemical profile, heartworm test, and infectious disease screening (for tick-borne diseases, including Lyme disease). If the donor dog passes these tests, they are ready for the next step- Donation time. Blood work will be rechecked yearly to make sure the dog is still healthy enough to donate blood.