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Test Code 50551 Rubella Antibody, IgM (0050551)

Important Note

Test should be ordered as "MISC".

Not recommended as a stand-alone test.  Testing of Rubella Antibodies, IgG and IgM is preferred.  Order test code "RUBELLA" for IgG.

Additional Codes

ARUP Test Code: 50551

Useful For

Aid in the diagnosis of suspected rubella infection.

Not recommended as a stand-alone test.  Testing of Rubella Antibodies, IgG and IgM is preferred.

Synonyms/Keywords

Rubella Ab, IgM

Rubella Antibody IgM

Rubella serology

Specimen Requirements

Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
 
Serum Serum Separator Tube (SST)   1 mL 0.5 mL  

Collection/Processing Instructions

Label specimens plainly as acute or convalescent.

 

Allow specimen to clot completely at room temperature. Separate from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to a plastic transport tube. (Minimum 0.5 mL).  Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of acute specimens.

Specimen Stability Information

Specimen Type Temperature Time
 


Serum

 		 Refrigerated 2 Weeks
Frozen 1 Year
(Avoid repeated freeze/thaw cycles)
Ambient 48 hours

Rejection Criteria

 Contaminated, heat-inactivated, or grosslyhemolyzed specimens.

Test Components

Rubella Antibody IgM

Reference Range Information

19.9 AU/mL or less:  Not Detected.

20.0 - 24.9 AU/mL:  Indeterminate - Repeat testing in 10-14 days may be helpful.

25.0 AU/mL or greater:  Detected - IgM antibody to rubella detected, which may indicate a current or recent infection or immunization.

Performing Laboratory Name

ARUP Laboratories

Referral Laboratory Information

Address Telephone Website Link Marshfield Lab Account #
 

500 Chipeta Way

Salt Lake City, UT 84108-122

 800-522-2787 www.aruplab.com 12057

Performing Information

Performing Location Day(s) Test Performed Report Available Methodology/Instrumentation
ARUP Laboratories Sunday through Saturday 3 days Semi-Quantitative Chemiluminescent Immunoassay

CPT Codes

CPT Modifier
(if needed)		 Quantity Description Comments
 
86762   1    

Outreach CPT Codes

CPT Modifier
(if needed)		 Quantity Description Comments
 
86762   1    

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