Transfusion medicine covers all facets of the transfusion of blood and its components. It generally embraces blood donation, routine laboratory tests for infections spread through blood, management and oversight of clinical transfusion procedures, immunohematology, patient blood management, therapeutic apheresis, stem cell collections, cellular treatment, and coagulation. Transfusion is a process where blood or isolated blood components are injected into a patient's vein during a transfusion operation.

The NUmed Hospital's Department of Transfusion Medicine takes care of collecting and processing the blood that will be administered to patients. Additionally, the department is responsible for gathering and processing hematopoietic cells for bone marrow and blood transplants and conducting necessary tests for organ transplants. Transfusion medicine also treats patients with blood, organ, and neurological conditions.