Which of the following describes a first-degree burn?

A first-degree burn is characterized by affecting only the top layer of the skin, which is known as the epidermis. This type of burn typically results in redness, swelling, and pain, making it quite uncomfortable for the individual. The skin may appear flushed, and the pain is a result of the nerve endings becoming irritated by the burn.

In contrast, a first-degree burn does not cause blisters; those are usually associated with second-degree burns, which affect both the epidermis and the underlying layer, the dermis. Additionally, a first-degree burn does not extend to all layers of the skin or to muscle tissue, as might be seen in more severe burn classifications. Therefore, the identification of a first-degree burn is essential for proper treatment and care, focusing on pain relief and skin protection.