ARUP's Laboratory Test Directory
| 0099314: Varicella-Zoster Virus Antibody, IgM |
| Test Mnemonic: VZM | |
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Methodology: Enzyme-Linked Immunosorbent Assay
Performed: Mon-Fri Reported: 1-5 days |
| Specimen Required: | |
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Collect: One 4 mL SST.
Transport: 1 mL serum at 2-8°C. (Min: 0.5 mL) Submit specimen in an ARUP Standard Transport Tube. Pediatric Collection/Transport: 0.1 mL serum at 2-8°C. Remarks: Separate serum from cells ASAP. Acute and convalescent specimens must be labeled as such; parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Please mark specimen plainly as "acute" or "convalescent." Unacceptable Conditions: Severely lipemic, icteric, contaminated, heat-inactivated, or hemolyzed specimens. Stability: After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles) |
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| Reference Interval: |
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0.90 ISR or less: Negative - No significant level of detectable varicella-zoster virus IgM antibody. 0.91-1.09 ISR: Equivocal - Repeat testing in 10-14 days may be helpful. 1.10 ISR or greater: Positive - Significant level of detectable varicella-zoster virus IgM antibody. Indicative of current or recent infection. However, low levels of IgM antibodies may occasionally persist for more than 12 months post-infection or immunization. |
| CPT Code(s): | |
| 86787 |