A trauma patient in hemorrhagic shock is being transfused using massive transfusion protocol (MTP). According to current evidence-based guidelines, what is the optimal ratio of packed red blood cells (pRBC) : fresh frozen plasma (FFP) : platelets?
- A 6:1:1
- B 1:1:1 ✓
- C 3:1:1
- D 4:2:1
Explanation
The PROPPR trial (2015) demonstrated that a 1:1:1 ratio of pRBC:FFP:platelets in massive transfusion achieves hemostasis faster and reduces 24-hour mortality compared to a 1:1:2 ratio. This balanced resuscitation approach mimics whole blood transfusion and prevents the lethal triad of hypothermia, acidosis, and coagulopathy in trauma. Tranexamic acid (TXA) given within 3 hours of injury (CRASH-2 trial) is also an important adjunct. Damage control resuscitation with permissive hypotension (target systolic 80-90 mmHg until hemorrhage control) is practiced alongside this balanced ratio.
Reference: Bailey & Love's Short Practice of Surgery, 27th ed.
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