Varicella-Zoster Virus Antibody (IgG) : 4439

Test Code
VZVGB xor 4439

Alias/See Also
Varicella IgG Antibodies, VZV IgG, Shingles, Herpes Zoster IgG Ab, Chicken Pox, VZV Antibody IgG

CPT Codes
86787

Instructions
Serum separator tube (SST) or a plain red top tube.

Transport Container
Centrifuge the serum separator tube and transport; if a plain red top tube, centrifuge and aliquot 1 mL serum (Min. 0.5 mL) into a standard transport tube.

Transport Temperature
Room temperature.

Specimen Stability
Room temperature: 4 days; Refrigerated: 7 days; Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis, Grossly lipemic

Methodology
Immunoassay

Setup Schedule
Monday - Saturday

Report Available
1-4 days

Reference Range
Index Interpretation
<135.00 Negative - Antibody not detected
135.00-164.99 Equivocal
≥165.00 Positive - Antibody detected
A positive result indicates that the patient has antibody to VZV but does not differentiate between an active or past infection.

Clinical Significance
Varicella-Zoster Virus Antibody (IgG) - 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. Varicella-Zoster IgG, Immunoassay reliably measures immunity due to previous infection, but is unsuitable for detection of post-vaccination immune status.

Performing Laboratory
med fusion



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.