Microbiology The NBT (nitroblue tetrazolium) reduction assay is used to – A Evaluate granulocyte function B Evaluate T-cell function C Determine whether polymorphonuclear leucocytes can produce superoxide D Stain B-lymphocytes 💡 Explanation The NBT (nitroblue tetrazolium) reduction assay is used to - ✓ Correct Answer: C. Determine whether polymorphonuclear leucocytes can produce superoxide