Crossmatch AHG

Specialty Compatibility Testing
Test Information Testing includes ABO/Rh and antibody screen on the recipient performed to confirm ABO compatibility. If antibody screen is negative, and patient meets criteria, an electronic crossmatch is performed. If antibody screen is positive or patient has history of red blood cell alloantibody, an antiglobulin crossmatch is performed and antigen negative units are issued.
Sample Requirements EDTA
Requested Volume 7 ml EDTA (purple top) tube

2 full 7 ml EDTA for Outpatient Transfusion or Preadmission Orders (to avoid re-draw if the patient has antibody that must be identified)
Minimum Volume or Pediatric vol 1-5 years old, 3 ml EDTA;
< 1 year old, 2 full 0.5 ml EDTA microtainers
Requisition Form Request for Blood
Preadmission Request for Blood
Transaction Code 3015-00
CPT Codes None available
Test Schedule Monday-Sunday
Turn around Time (analytic time) 1.5 hours, 4 hours, or next day (depending on request)
Report/ Results Compatible