The effect of obstruction of bag surface on platelet concentrate pH.
Platelet concentrates stored in bags (made of a plastic film incorporating a new plasticizer) on flat-bed agitators for up to 5 days were found to have accelerated pH decline when the surface of the bag was obstructed with added labels and an invoice on the non-labeled side. Without the over-labeling and invoice, only one of 20 concentrates had a pH below 6.0, even at very high concentrations of platelets. Blood banks experiencing problems with pH decline in the platelet concentrates being stored up to 5 days should consider eliminating surface obstruction on the bag.
D001786:Blood Glucose / Q000032:analysis; D001792:Blood Platelets / Q000502:physiology*; D001793:Blood Preservation / Q000379:methods*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007773:Lactates / Q000097:blood
D001786:Blood Glucose; D007773:Lactates