The 1987 Comprehensive Blood Bank Survey of the College of American Pathologists.

The 1987 Comprehensive Blood Bank Survey consisted of four shipments of samples. Each presented graded challenges in ABO and D typing, crossmatching, and antibody detection and identification and ungraded challenges for antigen typing and ungraded serum samples for educational purposes. Practice patterns were elicited through supplemental questions, generally about issues raised by the survey samples. Two of the surveys showed significant problems. Set J-C included serum with anti-Lea, which was not detected by some participants. Anti-Dia was one of two antibodies in the J-D graded sample, and this additional antibody was not detected by a significant number of participants. Although minor problems were encountered in other challenges, in general performance was good.