Rubella Antibody, IgG

Label Mnemonic:	RUBEIGG
Epic code:	LAB4835
Order form:	Laboratory Requisition
Supply order:	Supply Order Form
Billing:	Billing Policies
CPT code:	86762

Specimen(s):

Plasma

Collection Medium:

Plasma Separator Tube 4.5 mL

Alternate Collection Media:

Call laboratory for additional acceptable specimen collection containers.

Minimum:

3 mL whole blood in light green top tube or TWO Microtainer^® devices.

Testing Schedule:

24 hrs/day, 7 days a week, including holidays.

Turn Around Time:

1 hour (upon receipt in laboratory)

Reference Range:

7 IU/mL or less: Negative - No significant level of detectable
                            rubella IgG antibody.

8-9 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.

Rubella IgG antibody can be formed following rubella infection or after 
rubella vaccination.  A reactive result is consistent with immune 
status to rubella virus.  Non-reactive and equivocal results flag as 
abnormal in Epic which indicates non-immune or equivocal immune status 
to rubella.  A non-reactive result does NOT imply rubella infection.  
If ordered in workup of possible rubella infection, the IgG antibody 
results should be interpreted in conjunction with other laboratory 
tests, clinical history, and physical examination.

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:

Multiplex Flow Immunoassay

Sample Processing:

Centrifuge at a speed and time necessary to get barrier separation of plasma/serum and cells.
Separate plasma or serum into labeled container and cap.

Sample Storage:

Refrigerate.

Transport Instructions:

Place labeled specimen into zip-lock type biohazard bag; seal bag.
Place completed requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.

CPT Code:

86762