Table 2.

If MTP Triggers are met, initiate DCR: Begin universal blood product infusion rather than crystalloid or colloid solutions Transfuse universal RBC and plasma in a ratio between 1:1 and 1:2 (plasma to RBC). Transfuse one single donor apheresis or random donor platelet pool for each six units of RBC. Blood products should be automatically sent by the transfusion service in established ratios Subsequent coolers should be delivered at 15-minute intervals until the MTP has been terminated The goal is to keep at least one MTP cooler ahead for the duration of the MTP activation.

From:

ACS TQIP Massive Transfusion in Trauma Guidelines

https://www.facs.org/~/media/files/quality%20programs/trauma/tqip/massive%20transfusion%20in%20trauma%20guildelines.ashx