Measles Antibody (IgG), Immune Status

Test Code

964

CPT Codes
86765

Preferred Specimen

1 mL serum collected in a red-top tube (no gel)

Minimum Volume

0.5 mL

Transport Container

Plastic screw-cap vial

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days

Methodology
Immunoassay (IA)

Setup Schedule

Set up: Tues-Sat; Report available: Next day

Reference Range

AU/mL	Interpretation
<13.50	Not consistent with immunity
13.50-16.49	Equivocal
>16.49	Consistent with immunity

The presence of measles IgG suggests immunization or past or current infection with measles virus.

Clinical Significance

Measles, also known as rubeola, causes fever, irritability, respiratory illness, and the characteristic skin rash. Immunization has greatly diminished the incidence of measles. The presence of IgG is consistent with immunity or prior exposure. IgM is consistent with current or recent infection. IgM tests can generate false positive results and low levels of IgM can persist for longer than 12 months.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153

The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.