Surgery Ischemia/reperfusion (I/R) injury is considered to be a MAJOR mechanism for organ transplant failure. Allopurinol is used in organ preservation as: A Antioxidant B Preservative C Free radical scavenger D Precursor for energy metabolism 💡 Explanation Ischemia/reperfusion (I/R) injury is considered to be a MAJOR mechanism for organ transplant failure. Allopurinol is used in organ preservation as: ✓ Correct Answer: C. Free radical scavenger