"Traditional mass casualty incidents (MCIs) rarely place significant stress on local blood supplies. Victims of blast and penetrating trauma, however, may require massive transfusions, and when multiple victims present at once, this may create challenges for local blood banks, including problems managing unidentified patients (and the risk of transfusion reactions), the need to run multiple massive transfusion protocols at once, and the need to perform many crossmatches in a short period of time. This document includes answers to frequently asked questions about blood use during disasters and concludes with a list of related ASPR [Assistant Secretary for Preparedness and Response] TRACIE resources."
United States. Department of Health and Human Services. Office of the Assistant Secretary for Preparedness and Response: https://asprtracie.hhs.gov/