Reverse Grouping Was Performed on an AB Person

question 59

Multiple Choice

Reverse grouping was performed on an AB person. The technologist observed a very weak agglutination macroscopically. The cells appeared as "stacked coins" under a microscope. Which reagent should be added to the tube before recentrifugation in an attempt to resolve the discrepancy?

• A) Serum
• B) Saline
• C) Water
• D) LISS

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