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 AB (Immunity Screen), ACIF (Serum)
Test Code14505
CPT Codes
86787
Preferred Specimen
1 mL serum
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: Tue-Sat; Report available: 1-3 days
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).