Dried blood spot is a form of collection where patients place blood drops on a filter card after a finger prick with a lancet. Once dry, blood spot cards are extremely stable for shipment and storage, and the dried blood format offers excellent correlation with serum tests. The blood spot collection is a simple process and should only take a few minutes to complete. To learn more about ZRT's blood spot testing, visit our blood spot page at bit.ly/2HsLCxE