A 30-year-old man caught in an earthquake while doing carpentry in an old building. He is found buried

approximately 6 hoursl later by the rescue team who immediately noticethat the victim’s leg has been buried under seveal concrete blocks. They transport him to the nearby hospital. The patient is resuscitated with fluids and undergoes bilateral extremty faciotomies shortly after admission. Which of the following is most likely to hinder this patient’s renal function in the subsequent days?