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HelpTest Code HAVG Hepatitis A IgG Antibody
Additional Codes
Epic: LAB12911
Specimen Required
Specimen Type: Serum
Collection Container/Type
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 3 mL
Collection Instructions: Centrifuge and separate cells after clot formation and within 4 hours of collection.
Specimen Minimum Volume
0.5 mL
Specimen Stability
Room temperature: 4 days
Refrigerated: 8 days
Frozen: >8 days
Reference Range
Non-reactive
Rejection Due To
Unlabeled, mislabeled, wrong tube type, hemolyzed, QNS, exceeds specimen/stability requirements.
Report Available
Same day
Clinical Significance
Transmission of the Hepatitis A virus is via the fecal-oral route, and infection occurs mainly due to contaminated food or poor sanitary conditions. The virus replicates in the liver and is shed in the stool. Incubation period ranges from 15-40 days. Symptoms last approximately 2 weeks and include hepatomegaly, jaundice, dark urine, fatigue, and gastrointestinal disturbances. At the onset of symptoms, antibody to HAV is detectable, largely compromised of IgM subclass. HAV IgM is detectable for 3-6 months, but HAV IgG can persist indefinitely. The anti-HAVG assay is most useful as an aid in the diagnosis of previous hepatitis A infection or in the identification of HAV-susceptible individuals for vaccination.
Method Name
Chemiluminescent microparticle immunoassay
LOINC
40724-7
Day(s) Performed
Daily