How should frostbite depth be categorized in the field?

• A. Superficial frostbite; deep frostbite
• B. First-degree frostbite; second-degree frostbite
• C. Mild frostbite; severe frostbite
• D. Superficial frostbite and deep frostbite

Answer: (D)

In the field, frostbite depth is categorized as superficial frostbite or deep frostbite. This two-tier approach is used because it directly reflects how much tissue is involved and guides how you treat and triage the injury. Superficial frostbite involves the skin and outer layers, with symptoms like numbness and pale, cold skin, and it usually can be addressed with prompt, careful rewarming and local care. Deep frostbite reaches deeper tissues such as subcutaneous tissue, muscle, or bone, and presents with more severe signs like anesthesia and a hard, waxy feel; it carries a higher risk of tissue loss and requires rapid transport to a facility where controlled rewarming and advanced care can be provided. Substituting degree-based terms or vague labels like mild/severe is less reliable in the field because they don’t consistently map to how deeply the tissues are actually damaged, making the superficial vs deep distinction the most practical and effective framework for field management.