The LPN is caring for a patient with a femur fracture from a fall that occurred 18 hours ago. The patient is in Bucks traction awaiting surgery in the morning. At the 4 am assessment of the patient they are newly confused, anxious, with dyspnea. The LPN suspects what complication?

A. COPD exacerbation: COPD exacerbations typically develop gradually in patients with a history of chronic lung disease and are associated with increased cough, sputum production, and wheezing. Sudden confusion, anxiety, and dyspnea in a post-fracture patient are less characteristic of COPD exacerbation. B. Acute asthma attack: Asthma attacks usually present with wheezing, chest tightness, and cough. While dyspnea is common, the sudden onset of confusion and anxiety following a femur fracture is not typical for an acute asthma episode. C. Compartment syndrome: Compartment syndrome presents with severe pain, swelling, tense extremities, and possible paresthesia. Neurological changes are usually localized to the affected limb, whereas the patient’s new confusion and systemic symptoms suggest a more generalized complication. D. Fat embolism: Fat embolism syndrome often occurs 12–72 hours after long bone fractures, such as femur fractures. It is characterized by acute dyspnea, hypoxia, confusion, anxiety, and sometimes petechial rash. The patient’s sudden mental status change and respiratory distress are classic early signs of this life-threatening complication.