Anti-M was detected in a 27-year-old man before surgery. Units negative for M antigen were not available; however, the units were approved for transfusion when major crossmatch using M+N+ donor cells and patient serum resulted in:

Question

Quizplus · Accepted Answer

The crossmatch result of IS = 1+, 37 = 0, AHG = 0 indicates that the reaction is only at immediate spin, suggesting that the Anti-M is likely a cold-reacting antibody and not clinically significant at body temperature (37°C) or in the AHG phase.

Anti-M Was Detected in a 27-Year-Old Man Before Surgery