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HelpTest Code HITIG Heparin-PF4 IgG Antibody, Serum
Specimen Required
Patient Preparation: Fasting is preferred but not required
Collection Container/Tube: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Specimen Stability Information: Frozen (preferred) 2 years/Refrigerate 7 days
CMH COLLECTION: 2 mL in red vacutainer
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum Red | Frozen (preferred) | ||
| Refrigerated | 7 days | ||
Useful For
Detection of IgG antibodies directed against heparin/platelet factor 4 complexes that are implicated in the pathogenesis of immune-mediated type II heparin-induced thrombocytopenia, spontaneous heparin platelet-factor 4 IgG antibody, and thrombocytopenia and thrombosis occurring after SARS-CoV2 adenovirus vector vaccine
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
Day(s) Performed
Monday through Sunday
Report Available
1 to 3 daysReporting Name
Heparin-PF4 IgG Ab (HIT), SReference Values
HIT ELISA:
<0.400
HIT Interpretation:
Negative
Method Name
Enzyme-Linked Immunosorbent Assay (ELISA)
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86022