Is my babys entire leftover blood spot sample used for research?
No. After newborn screening is complete, one full blood spot is saved by the laboratory in case it is ever needed by you or your child. The remaining four spots are separated from all directly identifiable information, labeled with a code, and sent for storage in the biobank. Even if that sample is selected for one or more research studies in the future, it is highly unlikely that all four spots would be needed or used up.