35°C is the critical temperature
Blood clots are made by platelets and fibrin.
At temperatures < 34°C thrombocytes gets lazy and the clot disintegrates.
Cooling is easy, warming takes time
Even in tropical climate the body looses heat by wet clothes, rain, wind and “temperate” intravenous infusions.
Simple measures will do!
We conducted a controlled clinical trial in Cambodia and North Iraq: One group of mine victims got dry clothes, blankets, and 40°C warm IV infusion. The control group patients were evacuated in dirty and bloody clothes with “temperate” IV fluids. On hospital admission 20% of the control group patients had core temperatures
< 35°C. Only one patient in the hypothermia prevention group was cold. After five hours of in-field transport.