A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Varicella-Zoster Virus Antibody (Immunity Screen), ACIF
Test Code900947
CPT Codes
86787
Preferred Specimen
1 mL serum collected in a red-top tube (no gel)
Minimum Volume
0.075 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Methodology
Anti-Complement Immunofluorescence (ACIF)
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Set up: Tues-Sat; Report available: 2-4 days
Reference Range
<1:4 | Antibody Not Detected |
Evidence for susceptibility to VZV infection | |
≥1:4 | Antibody Detected |
Evidence for immunity against VZV infection |
Clinical Significance
A positive titer (≥1:4) by anticomplement immunofluorescence (ACIF) indicates a history of past infection by Varicella-Zoster virus infection or vaccination. This antibody is usually detectable within 2 days after the onset of rash and is, thereafter, detectable for life. Conversely, the absence of detectable antibody can be used as evidence of susceptibility to varicella (chickenpox).
Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
33608 Ortega Highway |
San Juan Capistrano, CA 92675-2042 |