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Test Code Billings Clinic: 9531 Mayo: VZM Varicella-Zoster Virus (VZV) Antibody, IgM, Serum

Reporting Name

Varicella-Zoster Ab, IgM, S

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Diagnosing acute-phase infection with varicella-zoster virus

Method Name

Immunofluorescence Assay (IFA)


Specimen Required


Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Specimen Type

Serum

Specimen Minimum Volume

0.2 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 14 days
  Frozen  14 days

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Heat-inactivated specimen Reject

Reference Values

Negative

Reference values apply to all ages.

Interpretation

A positive IgM result indicates a recent infection with varicella-zoster virus (VZV).

 

A negative result does not rule out the diagnosis of VZV infection. The specimen may have been drawn before the appearance of detectable antibodies. Negative results in suspected early VZV infection should be followed by testing a new specimen in 2 to 3 weeks.

Day(s) Performed

Monday through Sunday

Report Available

Same day/1 to 3 days

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

86787

LOINC Code Information

Test ID Test Order Name Order LOINC Value
VZM Varicella-Zoster Ab, IgM, S 43588-3

 

Result ID Test Result Name Result LOINC Value
80964 Varicella-Zoster Ab, IgM, S 43588-3

Forms

If not ordering electronically, complete, print, and send Infectious Disease Serology Test Request (T916) with the specimen.