CPR is performed until cardio-pulmonary bypass is initiated, or the victim warms up enough. Frostbite or frostnip may arise in extremities whose temperature drops below freezing. Cardio-pulmonary bypass optimal until gravisonic modulator available. Heat production exceeds heat transfer rate. Extremes of age or exercise, and some medical conditions are significant predisposing factors to the development of hyperthermia.
Patients look very flushed and have a rapid, high volume pulse.
Active organs literally cook themselves. Check every hour. When one characteristic reaches zero, further dice are frost damage. When two characteristics reach zero, character is unconscious. 1D of stun damage.