A nurse is caring for a client who has an open fracture of the ulna. Which of the following is a primary concern the nurse should be alert for?

Addressing open fracture priorities requires knowledge of orthopedic emergencies and infection control. Identifying the risks associated with skin barrier disruption and environmental exposure is necessary to prioritize immediate nursing interventions and monitor for systemic or localized complications. Choice A rationale Bone remodeling is the final stage of fracture healing and occurs over months. While important, it is not a primary or immediate concern for an open fracture compared to the acute risks of contamination and vascular compromise. Choice B rationale Fat embolism syndrome is more commonly associated with fractures of long bones like the femur or pelvis. While it can occur with the ulna, it is less frequent than the immediate risk posed by skin breakage. Choice C rationale Compartment syndrome is a serious complication involving increased pressure within a muscle compartment. While the nurse must monitor for it, an open fracture provides some natural decompression, making infection a more immediate threat. Choice D rationale An open fracture involves a break in the skin, allowing bacteria to enter and reach the bone. This creates a high risk for osteomyelitis and sepsis, making infection prevention and antibiotic administration the primary nursing priorities.