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Test Code Measles IgG Rubeola Measles IgG

Useful For

Measles (rubeola), a member of the paramyxovirus group, is a highly

communicable airborne disease (1, 2, 3, 4). At one time measles was a very

common childhood disease, but the introduction of a vaccine in 1963 and the

subsequent vaccination programs of the late 1970s drastically reduced the

number of reported cases. However, even with these efforts the disease has not

been totally eliminated (5, 6). There has been a recent shift in the susceptible

population toward young adults either as a result of their failure to be

vaccinated as children, the ineffective use of the vaccine, or in certain cases the

actual failure of the vaccine itself (7, 6). If individuals vaccinated at younger than

15 months are not revaccinated, they too may be susceptible to measles

infection (6). An expectant mother, not immune to measles, is therefore unable

to transfer passive immunity to her newborn leaving the child vulnerable to

measles infection at birth. Thus, serological testing has become increasingly

important for determining an individual's immune status. The detection of IgG

antibody to measles can be used to show immunity and detect seroconversion.

In the past, the immune status of an individual for measles has been determined

by hemagglutination inhibition (HAI), indirect fluorescent antibodies (IFA), and

enzyme-labeled immunosorbent assays (ELISA)

 

Sources available from the package insert

Preferred Specimen

Serum only

Minimum Volume

Adult: 1 mL

Pediatric: 1 mL

Specimen Stability

Serum Separated:   5 days at 2-8 °C

Container

Gold top SST Tube

Acceptable Specimen types

Serum

Days and Times Performed

Tuesday and Thursday

Collection Method

Venous Draw

Subactivity Type (Testing Location)

Special Chemistry

Instrument/Bench (Method)

Liaison DiaSorin XL 

Reference Ranges

Reactive

Please note: 

'Reactive' is displayed as 'normal' in the Cerner EMR

'Non-reactive' or 'equivocal' are shown as 'abnormal' in the Cerner EMR

CPT Codes

86765

Additional Test Comments

Viral IgG antibody can be formed following infection or after vaccination.  A reactive result is consistent with viral immunity. Non-reactive and equivocal results flag as abnormal which indicates non-immune or equivocal immune status.  Reactive results are posted as normal. A non-reactive result does NOT imply viral infection. If ordered in the workup of possible infection, the IgG antibody results should be interpreted in conjunction with other laboratory tests and the clinical presentation.