| Ordering Code | 5450 |
|---|---|
| Test Name | Heparin Induced Antibody |
| Alias | Heparin Induced Thrombocytopenia HIT HITA Heparin-Platelet Factor 4 Antibody Heparin Assoc Thrombocytopenia(HAT) |
| Preferred Specimen | Plasma |
| Preferred Container | Citrate, 3.2% (Lt Blue) |
| Other Specimen/Container | Serum in SST (Gold) |
| Optimum Volume | Plasma or Serum = 0.5 mL |
| Collection Instructions | Draw full tube Mix tube well |
| Handling Instructions | Serum samples MUST be clearly labeled as Serum (testing procedure is different for serum vs plasma) If testing not done w/in 24 hours, submit plasma/serum: double centrifuge, separate and freeze at -20 deg C immediately. Do NOT thaw once specimen is frozen. |
| Transport Requirements | Oahu: Frozen Airline: Frozen |
| Specimen Stability | Ambient: 24 hours Plasma/Serum Frozen: 1 month Plasma/Serum |
| Rejection Criteria | Grossly hemolyzed, Improperly filled or underfilled Citrate tube, Specimen older than stability limits |
| Avail. Stat | NO |
| Analytic Time | 1 Day |
| Methodology | ELISA |
Reference range(s)
The reference ranges listed below are valid on this date of November 21, 2024.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| Heparin Induced Antibody | ALL | NEGATIVE | NEGATIVE |