Methodology
Immunohistochemistry (IHC)
Test Description
Hepatitis B virus, belongs to the hepatovirus family, and causes type B hepatitis. It is spherical in shape with a diameter of 42 nm. It contains a 27 nm partially double stranded DNA core enclosed within a lipoprotein coat. The antigens in the outer surface are called hepatitis B virus surface antigens. Antibodies to surface antigens appear in circulation at an early stage of infection, whereas the antibodies to the core antigens are detected in blood after several weeks. Hepatitis B surface antibody targets Hepatitis B Virus Surface Antigen in IHC applications.
Specimen Requirements
- A formalin-fixed, paraffin-embedded (FFPE) tissue block is preferred specimen type
or - One (1) unbaked, unstained slide for H&E staining (required) and two to three (2-3) positively charged unstained slides (all cut at 4-5 microns) for each test/antibody ordered
- Block and slide identifiers should be clearly written and match exactly with the specimen ID and specimen labeling as noted on the requisition.
Storage & Transportation
Use cold pack for transport. Make sure cold pack is not in direct contact with specimen.
CPT Code(s)*
88342 x 1 or 88341 x 1
Turnaround Time
Global: 48 hours, Tech-Only (stain only): 24 hours
Level of Service
Global
Stain Only
New York Approved
Yes