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Hepatitis A Antibody, IgM | | Updated | 10/2/2009 | | Other Names | | | How to Order |
Check the Hepatitis A IgM Antibody box on the Virology/Immunology Request Form (form 42) and complete the reason for test under Billing Information Only | | Availability | All clients | | Methodology | | | Performed | Tuesday, Thursday | |
Time to Reporting
| 1 to 3 working days after receipt of specimen | |
CPT Code
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Specimen Collection Details
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Collection
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One 7 ml red top tube or serum separator tube (SST). Also acceptable are specimens collected with anticoagulants such as EDTA, sodium citrate or heparin. Samples collected using anticoagulant should be filled as per manufacturer’s instructions to avoid improper dilution. | |
Optimal Volume
| Blood: 5 ml; Serum 1.5 ml | |
Minimum Volume
| Blood: 3 ml; Serum 0.5 ml | |
Handling
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After blood clots, keep specimen refrigerated until transport. DO NOT FREEZE. If possible remove the serum from the clot as soon as possible. Sample must be tested within 7 days of collection. | |
Transport
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Rejection Criteria
| Specimens contaminated with bacteria or particulate matter, cadaver specimens, gross hemolysis, gross lipemia, multiple freeze-thaw cycles, and heat-inactivated samples. | |
Comments
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This test is intended for use in the qualitative determination of IgM antibody to hepatitis A virus in human serum or plasma. This assay is indicated for use as an aid in clinical laboratory diagnosis of acute or recent hepatitis A virus infection, usually within 6 months; however it has not been established as an aid in determining susceptibility to HAV infections prior to or following vaccination in infants, children, or adolescents. |
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