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HelpEpic Test Code Lab3779 Hepatitis A Antibody IgG
Performing Location(s)
BMC
Synonyms
Antibody to Hepatitis A virus, IgG
Specimen Type
Serum
Preferred Container
Gold or Red top
Blood Tube Draw Volume
Min 50% draw volume
Minimum Volume to Submit for Testing
2 mL Serum
Storage Requirements
Sample tubes should be centrifuged within 2 hours of collection followed by transfer of the serum (red or gold top) to a labeled plastic, aliquot tube and stored refrigerated.
See Causes of Rejection for temperature requirements.
Transportation Needs
Deliver specimen to laboratory within 1 hour of collection if unspun. If not possible see "storage Requirements".
Causes for Rejection
Mislabeled or unlabeled specimen
Plasma
Spun or Unspun sample >7 days at 2-8 °C
Spun or Unspun sample >3 days at Room Temperature
Hemolysis > 500 mg/dL HgB
Lipemia > 3000 mg/dL Trig
Bilirubin > 20 mg/dL Bili
Total Protein >12 g/dL
Limitations
Specimens from patient who have received mouse monoclonal antibodies (HAMA) for diagnosis or therapy may exhibit either falsely elevated or depressed levels.
Hydrophobic antibodies in human serum may interfere, and additional info may be needed for specimens from patients with Non-Hodgkin’s Lymphoma.
Reference Values
| Hepatitis A Antibody (IgG) Reference Range | ||
| Population | Units | Reference Range |
| All populations | S/CO | Negative |
Available STAT
No
Days of Analysis
M-F only.
Additional Information
This test is not available on a STAT basis or off-hours, weekends or holidays. If an emergency request is necessary, call 3731 for availability. Pathologist approval may be required.
Includes
Qualititative analysis for Hepatitis A IgG Antibody.
Methodology
Two Step Chemilumimetric Immunoassay
Interpretation
Negative result does not exclude exposure to Hepatitis A virus, as levels of IgG Anti HAV antibodies may be below the cut-off in early infection.
A positive HAV IgG result does not exclude co-infection by another hepatitis virus.
Assay results cannot be considered quantitative and no clinical claims for immunity can be determined from the cutoff.
Monitoring IgM Anti-HAV levels at 1 week intervals will distinguish rapidly rising antibody levels associated with early acute HAV infection from gradually decreasing or unchanging levels often associated with late acute stage infection.
CPT Code
Hepatitis A IgG AB: 86708
Last Updated
18-Mar-22 BHD