Which classification of burns is characterized by the destruction of all layers of the skin?

The classification of burns characterized by the destruction of all layers of the skin is third-degree burns. In a third-degree burn, the damage extends through the epidermis (the outer layer of skin) and the dermis (the second layer of skin) to deeper tissues. This type of burn results in significant tissue loss and is often painless at the burn site due to the destruction of nerve endings. The skin may appear white, charred, or leathery, indicating severe damage.

In contrast, first-degree burns affect only the outermost layer of skin and manifest as red, painful skin without blisters. Second-degree burns involve both the epidermis and part of the dermis, leading to blistering and more intense pain. While fourth-degree burns extend beyond the skin into underlying tissues such as fat, muscle, and bone, they are not specifically defined just by the destruction of all skin layers but rather include damage to deeper structures. Thus, third-degree burns are specifically recognized for causing complete destruction of all skin layers, making the classification accurate.