Indirect Antiglobulin Test (antibody screen)

Also Known as (Alias) Antibody screen
Indications This test detects the presence of unexpected antibody (allo- or auto-) against red blood cell antigens.
Method Capture solid phase technology or gel column.
Test Information Patient serum/plasma is tested against a three cell panel that contains 18 common red cell antigens. The majority of clinically significant red blood cell alloantibodies are detected by this test. If positive, a limited cell panel (antibody identification) will be performed to determine red blood cell antigen specificity. If unresolved, referred to IRL.
Sample Requirements EDTA or plain red top (clotted) tube, separator gel tube is not acceptable.
Requested Volume 1 full 7 ml EDTA/clotted sample
Minimum Volume or Pediatric volume Minimum volume: 1 full 7 ml EDTA/clotted sample
Pediatric: 1 full 3 ml EDTA; neonate: 2 full 0.5 ml EDTA microtainers
Shipping Information Ship at ambient temperature

Send samples to:
Bloodworks Northwest
921 Terry Avenue
Seattle, WA 98104

Requisition Form Request for Blood and Transfusion Testing
Transaction Code 3104-00
CPT Codes 86850
Test Schedule Monday through Sunday
Turn around Time (analytic time) 24 hours if weekday; 48 hours if weekend
Report/ Results Fax number required to receive report

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