A nurse is caring for a client who sustained a closed tibial…

A nurse is caring for a client who sustained a closed tibial fracture 8 hours ago. The client reports deep, burning leg pain that is not relieved with opioids and worsens with passive dorsiflexion of the foot. The lower leg feels firm and tense to palpation, distal pulses are palpable, and capillary refill is brisk. What is the priority action by the nurse?