Mr. VT is a 50-year-old male who has been admitted for elective surgery following a car accident. He had been admitted to another hospital 4 weeks earlier following the accident.
- Two units of red cells are ordered for the surgery.
Discussion and Resolution
After reviewing the case resolution, answer these questions:
What percentage of group A subgroups have anti-A1 present?
Is the anti-A1 present in some A subgroups usually clinically significant?
What is the typical appearance of mixed-field agglutination?
What can cause mixed-field agglutination?
- British Columbia Provincial Blood Coordinating Office. Technical resource manual for hospital transfusion services, ed 2. Vancouver: Provincial Blood Coordinating Office;2006. See CT.003 ABO group problem solving.
- Harmening DM. Modern blood banking and transfusion practices. 4th ed. Philadelphia: FA Davis;1999.
- Issitt PD, Anstee DJ. Applied blood group serology. 4th ed. Durham, NC: Montgomery Scientific Publications; 1998.
- Vengelen-Tyler V, editor. Technical manual. 13th ed. Bethesda, MD: American Association of Blood Banks; 1999.