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Test Code BB XM Crossmatch

Performing Laboratory

Charleston Area Medical Center-Transfusion Services

Memorial          304-388-4236
General          304-388-6248
Women and Children's                       304-388-2380
Teays          304-757-1770
Plateau Medical Center Laboratory             304-469-8621

Specimen Requirements and Processing

Draw 1 full 7 mL pink-top EDTA tube 

Note: Label specimen in indelible ink with patient’s full name, date of birth, hospital medical record number, date and time of draw, and initials of phlebotomist.

Special Instructions: Request form: CAMC LabWorks requisition, white Tranfusion Services slip, or Gold Transfusion Services Envelope.

Specimen Rejection

  • Improperly labeled, quantity not sufficient, hemolyzed and improper collection. 
  • Serum gel is not acceptable.  

Limitations

Antibody may be present in low concentration, too low to detect serologic incompatibility

Storage and Stability

Specimen may be used for testing for 72 hours if sample is sufficient

Reference Value

Crossmatch compatible

Methodology

Antigen-Antibody

 

To assure maximum benefit to the patient requiring transfusion. Crossmatch is an in vitro test to detect ABO incompatibility with donor cells. Transfusion of ABO incompatible RBC's can cause a hemolytic transfusion reaction.

Days Test Set Up and Turnaround

Monday through Sunday, Continuously

Results available within 2-4 hours pending patient does not have antibody