CO37 | Assessment of clotting factor activity and sterility in thawed fresh frozen plasma supplied to helicopter emergency medical services for prehospital transfusion: D. Romeo1, M. Marchetti1,2, M. Testa1, A. Motta1, P. Gomez-Rosas1, G. Ravasio1, F. Daminelli3, L. Barcella1, A. Falanga1,2 | 1Immunohematology and Transfusion Medicine Department, Hospital Papa Giovanni XXIII, Bergamo; 2School of Medicine and Surgery, University Milano Bicocca, Milan; 3Anesthesia and Resuscitation Department, Hospital Papa Giovanni XXIII, Bergamo, Italy. Bleeding Thromb Vasc Biol [Internet]. 2025 Oct. 22 [cited 2026 May 8];4(s1). Available from: https://www.btvb.org/btvb/article/view/244