Measles Antibody (IgG), Immune Status : 964

Test Code
RUBOGB or 964

Alias/See Also
Rubeola, IgG Antibodies, Measles, Immune Status

CPT Codes
86765

Instructions
Serum separator tube (SST) or a plain red top tube.

Transport Container
Centrifuge the serum separator tube and transport; if a plain red top tube, centrifuge and aliquot 1 mL serum (Min. 0.5 mL) into a standard transport tube.

Transport Temperature
Room temperature.

Specimen Stability
Room temperature: 4 days; Refrigerated: 7 days; Frozen: 30 days

Methodology
Immunoassay

Setup Schedule
Monday - Saturday

Report Available
1-4 days

Reference Range
Measles IgG (AU/mL):
<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
med fusion



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.