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Varicella zoster immune assay-6647

Test info

Test name:

Varicella zoster immune assay

Test number:

6647

Excellian order number:

86787

Abbreviation:

VZV

Alternate names:

VZV IgG
VZV immune status
Varicella zoster IgG antibody

Specimen

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

1.0 mL

Minimum volume:

0.2 mL

Collection instructions:

Immediately following collection, thoroughly mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection

Transport container:

Gold serum separator (SST) tube

Alternate collection container:

Red serum vial/tube - 5 mL

Red/grey serum separator (SST) vial/tube, 10 mL

Alternate processing instructions:

Allow sample to clot
Spin
Transfer serum to a False bottom plasma/serum transport vial/tube (AHL), labelled as serum, within two (2) hours of sample collection

Alternate transport container:

False bottom plasma/serum transport vial/tube (AHL)

Red/grey serum separator (SST) vial/tube, 10 mL

Transport and stability:

Refrigerated (preferred) - 7 days

Frozen (OK)

Reason for rejection:

Improper labels (unlabeled or mislabeled)
Hemolysis (some procedures)
Improper anticoagulant or ratio
- Heparinized plasma is not acceptable
Delay in transport
Improper storage temperature affecting results
Improper container
Leaking container resulting in compromised specimen
Quantity not sufficient (QNS)

Performance

Performing lab:

AHL - Immunology: I-L

Days set up:

Tu, Th and Sa or Su

TAT:

2 - 3 days

Method:

Chemiluminescence Immunoassay (CLIA)

Clinical and Interpretive info

Reference ranges:

Negative: <135 Index Value (presumed not immune)

Equivocal: 135 - 165 Index Value (repeat in 1 - 2 wks)

Positive: ≥ 165 Index Value (presumed immune)

Billing

CPT codes:

86787

Tracking

Date created:

11/30/2001

Revised date:

02/02/2022

Review date:

11/19/2021