Varicella-Zoster Antibody, IgM
| Label Mnemonic: | VZM |
| Epic code: | LAB4230 |
| Downtime form: | A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Commercial Mailout Laboratory
6240-8 RCP
356-8593
6240-8 RCP
356-8593
Specimen(s):
Serum
Specimen
Instructions:
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."
Collection Medium:
 |
| Red top tube 5 mL (Clot Activator) |
Minimum:
Preferred Minimum: 1 mL serum in a red top tube
Absolute Minimum: 0.1 mL serum in a red top tube
Absolute Minimum: 0.1 mL serum in a red top tube
Rejection Criteria:
Contaminated, heat-inactivated, hemolyzed, icteric, or severely lipemic
specimens.
Delivery Instructions:
Deliver to laboratory immediately after collection.Turn Around
Time:
1-5 days upon receipt at reference laboratory
Reference Range:
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.
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.
Methodology:
Semi-Quantitative Enzyme-Linked Immunosorbent Assay
CPT Code:
86787