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HelpTest Code XM Compatibility Testing (Crossmatch)
Methodology
Hemagglutination
Compatibility testing consists of: (1) review of patient’s past history, (2) ABO and Rh typing of patient and donor, (3) antibody screening of patient, and (4) crossmatch between donor red blood cells and patient’s plasma. If antibody screen is negative, immediate spin crossmatch is performed. If antibody screen is positive, antiglobulin technique crossmatch is performed.
Specimen Requirements
Minimum of one full pink-top (EDTA) tube. Transport refrigerated.
NOTE:
Transfusion candidates MUST be wearing a valid Blood Bank Identification wristband.
Blood Bank Identification number on wristband MUST be present on blood specimen tube.
Day(s) Test Set Up
Monday through Sunday
Reference Values
No established reference values
Test Classification and CPT Coding
86850-Antibody screen
86900-ABO
86901-Rh type
86920-Crossmatch, immediate spin
86922-Crossmatch, antiglobulin technique
Performing Laboratory
Beebe Healthcare Laboratory
Performing Location
Margaret H. Rollins Laboratory
South Coastal Campus Laboratory
Specialty Surgical Hospital Laboratory