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) 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: For additional information please see Ordering Information |
| Requisition Form | RFT- Immunogenetics/HLA and Platelet Immunology Labs |
| Transaction Code | 3655-00 |
| CPT Codes | 86022 x3 |
| Test Schedule | Monday thru Friday |
| Turn around Time (analytic time) | 1-2 business days |
| Report/Results | Fax number required to receive report |