Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Test Name: Sunquest Test Code Epic Procedure Code Or ID CPT Code:  

VARICELLA ZOSTER IGG

ORDERING INFORMATION:
Sunquest Test Code:
VZ      Geisinger Epic Procedure Code: 86787.01         Geisinger Epic ID: 15233

SPECIMEN COLLECTION
Specimen type:
Serum
Preferred collection container:
Alternate Collection Container:
6 mL red-top (plain, non-serum separator) tube
Specimen required:
0.5 mL serum; minimum 0.2 mL

SPECIMEN PROCESSING
Specimen processing instructions:
Allow to clot. Centrifuge and submit 0.5 mL serum. 
Transport temperature:
Refrigerated (preferred). Room temperature (stable 8 hours) and frozen specimens also acceptable.
Specimen stability:
Room temperature: 8 hours. 2-8°C: 96 hours. Frozen: 6 months.
Rejection criteria:
Specimen stability exceeded; specimen grossly hemolyzed.

TEST DETAILS
Interpretation guide:
Index Value
Result
Interpretation
< 135 Negative Absence of detectable VZV IgG antibodies. A negative result indicates no detectable VZV antibody but does not rule out acute infection. It should be noted that the test usually scores negative in infected persons during the incubation period and the early stages of infection. If exposure to varicella zoster virus is suspected despite a negative finding, a second sample should be collected and tested no less than one or two weeks later.
135 to 165 Equivocal Suggest a second sample be collected and tested one to two weeks later.
> 165 Positive Presence of detectable VZV IgG antibodies. A positive result generally indicates exposure to the pathogen or administration of specific immunoglobulins, but it is no indication of active infection or stage of disease.
NOTE: The magnitude of the measured result is not indicative of the amount of antibody present.
CPT code(s):
86787
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Varicella zoster antibody IgG detection.
Methodology:
Chemiluminescence
Synonyms:
Herpes zoster
Varicella zoster IgG Ab
Chicken pox, shingles
Varicella zoster antibody IgG
Clinical significance:
Varicella zoster (VZ) is a virus of the herpes group that causes chicken pox and when reactivatede in adults causes shingles. The presence of VZ IgG antibody suggests recent or previous infection.
Doctoral Director(s:)
Stacy Kenyon, PhD, DABCC
Hoi-Ying Elsie Yu, PhD, DABCC    
Review Date: 10/31/2018

Performing Locations

Geisinger Medical Center

Performing laboratory: Immunology
Technical Lead: Kathy Hurst
Frequency: Sunday, Tuesday through Friday: 1st shift
Performed stat? No
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