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VZV AB (IGM),EIA-N

Test Code

54049P

CPT Code(s)

86787

Preferred Specimen(s)

1 mL serum

Minimum Volume

0.1 mL

Specimen Stability

Room Temperature (up to 4 days); Refrigerate (up to
7 days); Freeze (up to 1 month)

Methodology

Immunoassay (IA)

Performing Laboratory

Nichols Institute-Chantilly

Setup Days

Set up days at Chantilly: Monday - Friday

Report Available

Reports in 2 days

Limitations

Other herpes viruses may cross react and produce high titers. Protection may be limited at low positive titers.

Reference Range(s)

≤0.90
Interpretive criteria

0.00-0.90 Negative
0.91-1.09 Equivocal
≥1.10 Positive

Results from any one IgM assay should not be used as a sole determinant of a current or recent infection. Because an IgM test can yield false positive results and low level of IgM antibody may persist for more than 12 months post infection, reliance on a single test result could be misleading. If an acute infection is suspected, consider obtaining a new specimen and submit for both IgG and IgM testing in two or more weeks.

Clinical Significance

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.

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided 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 payer being billed.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

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