How is a full thickness burn usually characterized?

A full thickness burn is characterized by damage that extends through all layers of the skin, including the epidermis, dermis, and into the subcutaneous tissue. This type of burn destroys nerve endings in the affected area, which leads to an absence of pain or sensation. Because the nerve endings are severely damaged or destroyed, the individual may not feel pain in the burned area itself, even though the surrounding skin may be sensitive.

The other options describe characteristics of different degrees of burns. For example, a full thickness burn would not present with blisters and redness, which are typically associated with partial thickness burns. Similarly, the presence of swelling and peeling skin is more indicative of superficial or superficial partial thickness burns. Therefore, the absence of pain due to nerve damage is a defining characteristic of a full thickness burn.