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Varicella-Zoster Virus Antibody (IgM) [8683]
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
VZVABM
Alias/See Also
8683
CPT Codes
86787
Preferred Specimen
1 mL serum
Minimum Volume
0.2 mL
Transport Container
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic • Grossly icteric
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Tues-Sat a.m.; Report available: Next day
Limitations
Other herpes viruses may cross react and produce high titers. Protection may be limited at low positive titers.
Reference Range
VZV Ab (IgM) | ≤0.90 |
0.00-0.90 | Negative |
0.91-1.09 | Equivocal |
≥1.10 | Positive |
Clinical Significance
Varicella-Zoster Virus (VZV) causes chicken pox and when reactivated, potentially decades later, causes shingles. Twenty percent of adults will develop shingles, a rash or blister of the skin that may cause severe pain.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153
Last Updated: December 7, 2021