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HEPATITIS A VIRUS ANTIBODY IgM (088-7175) Synonyms: Anti-HAV IgMCPT 4 Code: 86709 Test Order Mnemonic: HAVM Applies to: Hepatitis A Virus Antibody to determine acute or recent infection Lab: Serology Request Form: Microbiology/Serology Collection: Routine venipuncture, SST (serum separator tube) Storage Instructions: Centrifuge the specimen and store at 2-8°C Causes for Rejection: Gross hemolysis, specimens containing particulate matter, heat-inactivated specimens Availability: Samples are accepted 24 hours per day at Sample Management, 5.136McCullough. Turnaround Time: 24-72 hours Special Instructions: Consider this test for work-up of acute hepatitis. If the patient has previously been positive for HAV IgM, it is recommended to wait three months before testing again. If the patient has no detectable antibody, it is recommended to wait three months before testing again. Tests on samples collected less than three months from the initial results will be cancelled, unless approved by a Microbiology Director or their designee. Recommended tests to determine
acute hepatitis (see note) are Hepatitis A
antibody IgM, Hepatitis B Surface antigen,
Hepatitis B Core antibody IgM and
Hepatitis C virus antibody.
Recommended tests to determine chronic hepatitis are Hepatitis B Surface antigen, Hepatitis B Core antibody IgM and Hepatitis C virus antibody. Specimen: Blood Volume: 2 ml serum Minimum Volume: 0.5 ml serum Container: SST (gel barrier) Reference Ranges: Negative Test Method: Automated EIA Revised 07/25/2008 by T. Friloux |
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