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 |
