Heartsaver AHA First Aid Practice Test 2026 – Complete Exam Prep

Cold, numb skin is a key indicator that frostbite may be present. Frostbite occurs when skin and underlying tissues freeze due to exposure to extremely cold temperatures, which disrupts blood flow and nerve function in the affected area. As the tissues freeze, individuals often experience a loss of feeling—hence the numbness—along with the skin becoming cold to the touch. This symptom is crucial for early recognition of frostbite and can guide immediate first aid interventions.

Other symptoms related to frostbite, such as throbbing pain, fever and chills, or changes in skin color (like dark red), may be associated with various cold-related injuries or conditions but are not primary indicators of frostbite. Recognizing cold and numb skin allows a person to take timely actions, such as moving to a warmer place and seeking medical assistance if necessary.