Varicella zoster IgG Immune Status
| WSLH Department: | CDD - Communicable Disease Division |
| WSLH Test Code: | SS02165 |
| Availability: | Test is performed weekly. |
| Turn-around Time: | 1-8 days |
| Recommended Uses: | Determination of Varicella immune status. May also be used for quantitative paired sera testing for confirmation of recent or current infection. |
| Contraindications: | |
| Additional Tests Performed: |
| Patient Preparations: | Routine blood draw |
| Specimen Requirements: | Minimum of 0.5 ml serum |
| Specimen Handling & Transport: | Store serum specimen at 2-8 degrees C and transport with frozen cool packs. |
| Collection Kit/Container: |
Serology Specimens
Sterile Transfer Tube |
| Collection Instructions: | Routine blood draw |
| Unacceptable Conditions: | |
| Requisition Form: |
CDD Requisition Form B
|
| Required Information: | Laboratory regulations require the following minimum information to be provided on the requisition form for a specimen to be accepted for testing: Patient name or unique identifier; date and time of collection, patient date of birth and sex, specimen type/site of collection, test request(s), clinician name and UPIN, and address for reporting results. Please be certain that name/identifier on the form matches that on the specimen label. |
| Results Include: | Results are reported as Present, Equivocal or Absent. Interpretation: Present indicates the level of IgG antibody detected can usually be considered protective. Equivocal indicates an insufficient level of antibody to assure protection. Absent indicates Varicella IgG not detected, indicating patient susceptible to infection. If paired sera testing yields less than a four-fold change in titer, it indicates no evidence of recent or current infection. If paired sera testing yields a four-fold or greater titer change, it is considered diagnostic for recent or current infection. |
| Limitations: | For immune status testing only. Use Varicella zoster PCR (VR01727) for diagnosis of current infection. |
| Additional Tests Recommended: | |
| Additional Comments: |
| Methodology: | Indirect Fluorescent Antibody (IFA). |
| Includes: | Qualitative IgG IFA assay for the detection of IgG antibodies to Varicella virus. |
| CPT Code: | 86787 |
| Price: | $23.00 |