Which of the following best describes a full-thickness (third-degree) burn?
a. Erythema and pain
b. Skin showing erythema followed by blister formation
c. Destruction of all layers of skin evident with extension into subcutaneous tissue
d. Destruction injury involving underlying structures such as muscle, fascia, and bone
ANS: C
A third-degree or full-thickness burn is a serious injury that involves the entire epidermis and dermis and extends into the subcutaneous tissues. Erythema and pain are characteristic of a first-degree or superficial burn. Erythema with blister formation is characteristic of a second-degree or partial-thickness burn. A fourth-degree burn is a full-thickness burn that also involves underlying structures such as muscle, fascia, and bone.
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