Specimen:

Plasma

Collection Medium:

Minimum:

Adult Preferred Minimum:  1 mL plasma
Adult Absolute and Pediatric Minimum: 0.5 mL plasma

Rejection Criteria:

Heat-inactivated, hemolyzed, or contaminated specimens.

Specimen
Instructions:

Acute and convalescent specimens must be labeled as such; parallel 
testing is preferred and convalescent specimens must be received within 
30 days from receipt of the acute specimens. Please mark specimen 
plainly as "acute" or "convalescent."

Analytic Time:

1 hour (upon receipt in laboratory)

Reference Range:

Less than 5 IU/mL: Negative - No significant level of detectable
                              rubella IgG antibody.

5-9 IU/mL: Equivocal - Repeat testing in 10-14 days may be helpful.

10 IU/mL or greater: Positive - IgG antibody to rubella detected,
                                which may indicate a current or
                                previous exposure/immunization to
                                rubella.

Interpretive Data:

The best evidence for current infection is a significant change on two 
appropriately timed specimens, where both tests are done in the same 
laboratory at the same time.

Methodology:

Chemiluminescent Immunoassay

CPT Code:

86317