Which symptom would likely be absent with a first degree frostbite injury?

In the context of first-degree frostbite, blistering is indeed a symptom that would likely be absent. First-degree frostbite primarily affects the outer layer of the skin, resulting in symptoms like redness and mild swelling. It may cause the skin to feel cold and numb but typically does not lead to the formation of blisters, which is characteristic of more severe degrees of frostbite (such as second-degree frostbite).

In first-degree frostbite cases, the affected area may exhibit redness and hyperemia due to increased blood flow as the body attempts to warm the area. Edema, or swelling, might be present as a response to the cold injury, but again, blistering does not occur until there is more extensive tissue damage. Thus, the options indicating redness, hyperemia, and edema would all be possible symptoms, whereas blistering would not align with the characteristics of a first-degree frostbite injury.