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Test Code Billings Clinic: 5165 Antigen Screen, Blood

Performing Laboratory

Billings Clinic Laboratory: Blood Bank

Useful For

Useful for selection of donors and optimal crossmatching prior to blood transfusion for patients with identifiable antibodies/Erythrocyte Antigen testing.

Methodology

  • MTS Gel Card
  • Tube Agglutination

Specimen Requirements

Submit only 1 of the following specimens:

  • If specimen being drawn may result in a transfusion, patient must be wearing an identification bracelet. A Typenex® (Fenwal) identification band must be completed and placed on patient’s left wrist at time of draw.
  • All specimens must be completely labeled in accordance with the American Association of Blood Banks’ (AABB) requirements.
  • If specimen is spun down, label appropriately (plasmaor serum) and send along with RBCs.

EDTA Whole Blood

  • Draw a full, lavender-top (EDTA) tube, 5 ml or 9 mL
  • Send the unprocessed EDTA whole blood refrigerated.
  • Do not centrifuge.
  • Forward unprocessed whole blood promptly.
  • If there is a delay in transport of ≥6 hours, spin down and send plasma and RBCs refrigerated.

Whole Blood

  • Draw a full, plain, red-top tube
  • Send 7 mL of unprocessed whole blood refrigerated.
  • Do not centrifuge.
  • Forward unprocessed whole blood promptly.
  • If there is a delay in transport of ≥6 hours, spin down and send serum and RBCs refrigerated.

Reject Due To

  • Specimen received in serum gel tube
  • Specimen received in plasma gel tube

Reference Values

Negative

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

86902 - antigen screen

 

This test will be charged for each red cell antigen identified. Indicate antigen(s) to be tested.