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In frostbite care, you prioritize identifying and protecting the injured tissue before restoring warmth. Start by observing for signs of frostbite and taking steps to prevent further tissue damage, such as removing constrictive items and avoiding re-exposure to cold. Rewarm promptly in a circulating warm-water bath at about 106°F (40°C) to restore perfusion and minimize tissue ice crystal formation without causing thermal injury. After rewarming, elevate the injured areas above heart level to reduce edema and improve venous return. Finally, assess for development of compartment syndrome, since swelling after rewarming can increase pressure within a closed space and compromise circulation, so monitoring for severe pain, numbness, and color changes is essential. The sequence that places observation first, followed by rewarming, then elevation, and then monitoring for compartment syndrome best reflects the appropriate progression of frostbite care.