Chicken Pox Antigen
Chicken Pox Direct Antigen
Varicella Direct Antigen
Viral Antigen: Varicella zoster
VZV Direct Antigen
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Direct Immunofluorescent Antibody (DFA)
Rapid detection of Varicella Zoster infections.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
The specimen type is two 3-well teflon coated slides onto which have been scraped basal cells from the base and periphery of the lesion. Using a pencil, label the frosted end of the slide with the patient's first and last name and medical record number. Carefully open the vesicle, soak up the fluid with a sterile swab from the M4 Transport. Send to the laboratory for viral culture. Scrape the base and periphery of the lesion with a sharp instrument or vigorously rub with a dry swab. Gently roll the cells onto the slide, rolling each well separately. Allow the slide to air dry. The laboratory should have at least one slide with 3 wells for the test. Slides are rejected if there are not appropriate cells on the slide, if the cells are on the wrong side of the slide, if the slides are grossly contaminated, if the slides are not labeled with two patient identifiers, or if the slides are labeled with a label that covers the non-frosted area of the slide.
Special 3-well Teflon slides are available from MLabs. Using a pencil, label the frosted end of the slide with the patient's first and last names as well as a second identifier such as the patient's medical record number. One slide containing epithelial cells scraped from the base and periphery of the lesion is required. Carefully open the vesicle, soak up the fluid with a dacron or rayon swab, place into M4 transport and use for viral culture. Scrape the base and periphery of the lesion with a sharp instrument or vigorously rub with a dry swab. Gently roll the cells onto the slide, rolling each well separately. Allow the slide to air dry and refrigerate.