Heparin Antibody Test/Platelet Factor 4 ELISA (IgG, IgA,and IgM)
Also Known as (Alias) | HIT |
Method | Enzyme Linked Immunosorbant Assay (ELISA) |
Test Information | In some cases, HIT may be due to an IgA or IgM heparin associated antibody. If clinically indicated, test can be requested with anti-IgG, -A and –M. |
Sample Requirements | Citrate (blue top) |
Requested Volume | 5cc Citrate (blue top) |
Sample Information | Whole blood specimens can be sent directly to Bloodworks within 24 hours of draw time. Samples may also be spun, frozen at -20°C, and shipped on dry ice after-hours or over the weekend. |
Shipping Information | Send whole blood at ambient temperature Monday – Friday within 24 hours of draw time. Samples may also be spun, frozen at -20°C, and shipped on dry ice during after-hours or over the weekend
Send samples to: For additional information, please see Ordering Information |
Requisition Form | RFT- Platelet Immunology Laboratory |
Transaction Code | 3655-00 |
CPT Codes | 86022 x3 |
Test Schedule | Variable, please contact lab manager at 206-689-6542 for consultation |
Turn around Time (analytic time) | 1-2 business days |
Report/Results | Fax number required to receive report |