needle stick exposures), for documenting persons with past infection with Hepatitis B virus, for vaccine screening, and for determining response to vaccination. Hepatitis B surface antibody (anti-HBs) and Hepatitis B core antibody (anti-HBc) assays are useful for identifying persons susceptible to Hepatitis B infection (i.e. See Hepatitis B Chart 1, Chart 2, and Chart 3 Search HBB code in the online Laboratory Test Catalog for more information on Hepatitis B Battery (HBSAb, HBSAg, and HBCAb). Search HBSS code in the online Laboratory Test Catalog for more information on Hepatitis B Surface Antigen & Antibody (HBsAg, HBsAb). Search HBSAG or HBSAGX code in the online Laboratory Test Catalog. Note: Positive HBsAg will reflex to a Hepatitis B DNA by PCR at an additional charge. The physician must also report acute Hepatitis B infections to the local County Department of Public Health (in King County, telephone the Communicable Disease Department at (206) 296-4774). The routine HBsAg run can accommodate most specimens generated by accidental parenteral exposure. Patients with needle sticks and other parenteral exposures need to receive Hepatitis B Immune Globulin within 72 hours of exposure. ![]() Reports of reactive HBsAg are called to the ordering physician or laboratory and are automatically run for Hepatitis B viral DNA by PCR. ![]() Infectivity of a patient is determined by enzyme immunoassay for Hepatitis B surface antigen (HBsAg), which is run Monday through Friday. Hepatitis B is transmitted through blood or secretions of infected patients.
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