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Alphabetical Index
Rubella Antibody, IgG (8000200005)
Test Mnemonic:
Specimen Requirements:
Collection:

Serum separator tube (SST) or Red Top serum tube with no additive 
Container:

Serum separator tube (SST) or Red Top serum tube with no additive 
Minimum Volume:

3 mL of blood (1mL of serum) 
Storage/Transport:

Refrigerate (2-8°C) up to 7 days; Samples should be frozen (<-20°C)
Stability:

Refrigerate (2-8°C) up to 7 days; Samples should be frozen (<-20°C)
Causes for Rejection:

Insufficient quantity, gross hemolysis, lipemia; specimen container unlabeled or labeled incorrectly. No date and time of collection or collector information on order.
Specimen Preparation:

Within two hours of collection, centrifuge. Serum collected in a red top should be removed from the red cells if testing will be delayed. 
Methodology:

Multiplex bead immunoassay
Performed:

Clinical Microbiology
Turnaround Time:

Test is performed in batch, once per day, six days a week 
Reference Range:

Positive - recent or past exposure to Rubella by disease or vaccination. Negative - no antibody to Rubella virus
CPT 4 Code:

86762
Note:

For acute infection, a specific test for IgM antibody should be requested (Reference Lab test). A positive result indicates previous exposure to Rubella.  

Previously positive patients do not require further testing. If the patient has no detectable antibody, it is recommended to wait two weeks before testing again.

Synonyms:

Rubella screen; Rubella antibody; Rubella IgG;Rubella immune status; RUBG
Patient Preparation :

Routine venipuncture
Clinical Indication:

 Screen for recent or past exposure to the Rubella virus
Effective Date: 10/24/2024
Reviewed By/Date: Williams-Bouyer, Natalie - 03/08/2019
Approved By/Date: Williams-Bouyer, Natalie - 10/24/2024
When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent.

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