Which classification of burns appears leathery, dry, non-blanching, and is insensate?

The correct classification of burns that appears leathery, dry, non-blanching, and is insensate is indeed full thickness third-degree burns. These burns penetrate through the epidermis and dermis, affecting deeper tissues and resulting in a loss of sensation in the affected area due to the destruction of nerve endings. The leathery and dry appearance is characteristic of this type of burn, as the skin is severely damaged, causing it to lose flexibility and moisture.

Additionally, third-degree burns do not blanch when pressure is applied, meaning that the skin's vascular response is compromised due to the extent of the injury. Unlike other burn classifications, such as superficial first-degree burns or superficial partial-thickness burns, which typically heal and may exhibit pain or sensitivity, full thickness burns require significant medical intervention, often including surgical procedures for healing and skin grafting. Understanding these characteristics is crucial in the assessment and treatment of burn injuries, particularly in emergency medical settings.