Compatibility Testing Laboratory

Retrospective Compatibility Testing

• Transaction Code: 3103-00 (ABO/Rh)
• Transaction Code: 3104-00 (Antibody Screen)

If the units are transfused, a sample is required to perform a retrospective crossmatch.

• Analytic Time: 4 hours
• Days Test is Set Up: Monday-Sunday
• Sample Required: > 5 years old, one full 7 ml EDTA; 1-5 years old, one full 3 ml EDTA; < 1 year old, 2 full 0.5 ml EDTA microtainers