Heparin Antibody Test/Platelet Factor 4 ELISA

Also Known as (Alias) HIT
Method Enzyme linked immunosorbant Assay (ELISA)
Test Information An enzyme linked immunosorbant assay (ELISA) using a complex of heparin and Platelet Factor 4 (PF4) is used to capture antibody developed during type II Heparin-Induced Thrombocytopenia (HIT).   Detection of IgG antibody along with a strong clinical history supports a diagnosis of HIT.
Sample Requirements Citrate (blue top)
Requested Volume 5cc Citrate (blue top) tube
Sample Information Whole blood can be sent at ambient temperature to receive within 24 hours of draw. Frozen plasma samples can be sent over the weekend. Friday after 12 Noon thru Sunday night, weekend shipping directions apply.
Shipping Information Send whole blood at ambient temperature Monday - Friday and should be received in the lab within 24 hours of collection.

Send samples to:
Bloodworks Northwest
Attn:  Platelet Immunology Lab, Rm 619
921 Terry Avenue
Seattle, WA 98104
Note: If sending over the weekend. Spin and Freeze plasma at -20C then send frozen on dry ice.

For additional information please see Ordering Information
Requisition Form RFT- Immunogenetics/HLA and Platelet Immunology Labs
Transaction Code 3655-10
CPT Codes 86022
Test Schedule Monday thru Friday
Turn around Time (analytic time) 1 business day
Report/Results Fax number required to receive report