Q. The nurse calls you to visit a 55-year-old man who has undergone a right lower limb arterial thrombectomy 3 hours ago. He complains of severe pain in his right leg. The thrombectomy was performed after 7 hours of ischemia in the right lower limb. The CT angiography showed the thrombus in the right popliteal artery, just behind the knee joint, and it was successfully removed via a right femoral angiography. Following the thrombectomy, distal pulses were palpable, and the perfusion in the distal part was restored. He is currently receiving high-dose heparin. The patient states that the pain started gradually 1 hour ago and increased in intensity gradually, but now, it is not tolerable. The right leg and foot are pale, edematous, and tense on physical examination. The distal pulses are barely palpable. The sensation is intact. Passive dorsiflexion of the toes causes severe pain in the calf muscles. What is the best plan for him?