| Ordering Code | 498 | 
|---|---|
| Test Name | Hepatitis A Ab, IgM | 
| Alias | HAV Ab, IgM | 
| Preferred Specimen | Serum | 
| Preferred Container | SST (Gold) | 
| Other Specimen/Container | Serum in Plain (Red), Plasma in Lithium Heparin (Green-PST), Plasma in Lithium Heparin (Dark Green-PP No Gel) | 
| Optimum Volume | 1 mL | 
| Handling Instructions | All specimen types must be centrifuged within 2 hours of collection. If no gel separation present in tube and testing is delayed, plasma/serum is aliquoted from cells within 2 hours of collection. | 
| Transport Requirements | Oahu: Ambient Airline: Ambient | 
| Specimen Stability | Ambient: 2 Days Refrigerated: 1 Week Frozen: 3 Months (Aliquot) Frozen samples should be thawed no more than 5 times DO NOT store in self-defrosting freezers. | 
| Rejection Criteria | Grossly Hemolyzed, Lipemia, Insufficient quantity, Specimen older than stability limits | 
| Avail. Stat | NO | 
| Analytic Time | Up to 3 Days | 
| Methodology | Chemiluminescence Immunoassay (CLIA)-Antibody Capture | 
Reference range(s)
The reference ranges listed below are valid on this date of October 31, 2025.
      | Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info | 
|---|---|---|---|---|---|---|---|---|---|
| Hepatitis A Ab, IgM | ALL | NEGATIVE | NEGATIVE |