Which statement best describes a sign of an extremity fracture in the field?

Which statement best describes a sign of an extremity fracture in the field?

• A. Fever and fatigue
• B. Pain upon movement only
• C. Bruising
• D. Swelling and crepitus under the skin

Answer: (D)

In the field, a reliable indicator of an extremity fracture is swelling accompanied by crepitus under the skin. Swelling signals bleeding into soft tissues from a damaged bone, while crepitus is the crackling sensation or sound produced when fractured bone ends rub against each other. This combination is highly specific for a fracture, making it the best sign in austere conditions. Fever and fatigue aren’t direct signs of a fracture; they point to systemic illness or infection. Pain with movement is common in many injuries and isn’t as specific, and bruising can occur with sprains or contusions as well as fractures, so it’s less definitive on its own.

In the field, a reliable indicator of an extremity fracture is swelling accompanied by crepitus under the skin. Swelling signals bleeding into soft tissues from a damaged bone, while crepitus is the crackling sensation or sound produced when fractured bone ends rub against each other. This combination is highly specific for a fracture, making it the best sign in austere conditions.

Fever and fatigue aren’t direct signs of a fracture; they point to systemic illness or infection. Pain with movement is common in many injuries and isn’t as specific, and bruising can occur with sprains or contusions as well as fractures, so it’s less definitive on its own.