Additive Solutions Immunohematology Review 425
Purpose Extend shelf life of RBCs to 42 days.
Constituents Glucose for energy, adenine to support ATP levels.
Procedure Plasma expressed from WB. 100–110 mL additive transferred from attached satellite bag to RBCs within 72 hr of
collection or per manufacturer’s instructions.
Final hematocrit 55%–65% (HCT of RBCs without additive 65%–80%). Lower viscosity facilitates tf.
Examples Adsol (AS-1), Nutricel (AS-3), Optisol (AS-5)