VARICELLA-ZOSTER VIRUS ANTIBODY, IGM

Mnemonic

MISC

Specimen Collection Requirements

Collect

Serum separator tube

Handling

Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to a Standard Transport Tube. (Min: 0.2 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as "acute" or "convalescent."

Preferred Volume

1.0 mL

Minimum Volume

0.2 mL

Transport

Refrigerated.

Rejection Criteria

Contaminated, heat-inactivated, hemolyzed, icteric, or severely lipemic specimens.

Stability

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)

Testing Information

Performed

Mon-Fri

Method

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

Referral Lab

ARUP 0099314

Reference Values

Reference Values

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 Codes

86787

Last Updated: Thursday, January 5, 2017 03:42:33 AM