Donor: An individual who donates blood.
Dosage: A phenomenon where by an antibody reacts more strongly with a red cell
carrying a double dose (homozygous) rather than a single dose (heterozygous) of an
antigen, e.g. CC rather than Cc.
DMOC: Division Medical Operations Center.
DMSO: (1) Division Medical Supply Office: will store and distribute blood in the
division area. (2) Dimethyl sulfoxide: a cryoprotectant.
EAC: Echelons above Corps.
EIA or ELISA: Enzyme-linked immunosorbent assay. The methodology most BDCs
employ to test for infectious disease markers.
Endemic: A disease that occurs continuously in a particular population but has a low
mortality; used in contrast to epidemic.
Enzyme: A substance capable of catalyzing a reaction. Proteins that induce chemical
changes in other substances without being changed themselves.
EPA: Environmental Protection Agency.
FDA: Food and Drug Administration. Has jurisdiction over the blood industry.
FDA Form 483: Report document upon which citations for violations of FDA
regulations, including GMP violations, are recorded.
Febrile Reaction: A transfusion reaction caused by leukoagglutinins that is
characterized by fever of 1 C or 2 F or more.
FFP: Fresh Frozen Plasma. A frozen plasma product from a single donor that contains
all clotting factors, especially the labile factors V and VIII. Useful for clotting factor
deficiencies other than hemophilia A and hypofibrinogenemia.
FH: Field Hospital. A hospital located in the rear that is used to hold patients until they
can be evacuated out.
Gamma Globulin: A protein found in plasma and known to be involved in immunity.
Glycerol: A cryoprotectant agent.
Glycerolization: Adding glycerol to a unit of red cells for the purpose of freezing.