Varicella Zoster Antibody, IgG

Last Modified: 8/21/2023 2:21:24 PM


Medical Necessity Documentation:
Duplicate testing on this test is not acceptable per Medicare:  Testing to only be done every 365 days
Client Notes:  
Patient Preparation:  
Specimen Requirements: 1.0 mL Serum in a SST Gold Top Tube
Collection Instructions:  
Transport & Storage: Temperature/Stability: 48 hours Refrigerated
30 days Frozen


Specimen to be transported Refrigerated to PRMC within 48 hours of collection to be frozen by Immunology department to maintain specimen integrity until testing occurs. Do not transport Frozen.
Reference Range:
OD ratio < 0.90 indicates no detectable Varicella Zoster IgG antibody. No evidence of infection or immunity.
 
OD ratio 0.91 - 1.09 is equivocal for Varicella Zoster IgG antibody. Suggest a new specimen to be collected and re-tested.
 
OD ratio > 1.10 is positive for Varicella Zoster IgG antibody. In asymptomatic patients, including prenatal screens, a positive value is consistent with previous infection or immunity.
Critical Ranges:  
Test Comments:
A single specimen is of limited diagnostic value in documentation of an acute or concurrent infection.
Methodology: EIA
Clinical Significance:  
Documentation:  
Custom Panel: No

PRODUCTION SCHEDULE

Days Performed: Tuesday, Friday
Sites Performed: Parkview Regional Medical Center
PHL Test Code: VARZ
EPIC Test Code: IMO69
Alternate Test Names: Chicken Pox; Herpes Zoster IgG; HZV IgG; V Zoster IgG; Varicella Zoster IgG Antibody; VZV IgG
Included Tests:  
CPT Coding: 86787

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