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Test Code CMA Centromere Antibodies, IgG, Serum

Additional Codes

Epic Ordering Code LAB3041449
NBS code LBC13311
Service code 36758

Reporting Name

Centromere Ab, IgG, S

Specimen Type

Serum


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


National University Hospital-Singapore Note:

NUH Outreach Laboratories:
Specimen Requirements
Submit only one of the following:
Preferred: Yellow Top
Acceptable: Red Top
Processing Requirements
Centrifuge and aliquot serum into a plastic vial.
Specimen type: Serum
Volume: 0.5 mL
Storage/transport requirements: Refrigerated

Special Instructions

Specimen Minimum Volume

0.35 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 21 days
  Frozen  21 days

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus OK
Heat-Treated Reject

Method Name

Multiplex Flow Immunoassay

Day(s) Performed

Monday through Saturday

Report Available

Same day/1 to 3 days
National University Hospital-Singapore Note:

Please note that this is a referral test requiring transport to the external testing facility and an additional 3-5 days is required.

Reference Values

<1.0 U (negative)

≥1.0 U (positive)

Reference values apply to all ages.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Evaluating patients with features of systemic autoimmune rheumatic disease, particularly systemic sclerosis, Sjogren’s syndrome, or overlap disease

 

Aiding in the phenotypic stratification of patients with systemic sclerosis (limited cutaneous vs diffuse cutaneous or risk for specific clinical manifestations)

CPT Code Information

83516

LOINC Code Information

Test ID Test Order Name Order LOINC Value
CMA Centromere Ab, IgG, S 31290-0

 

Result ID Test Result Name Result LOINC Value
CMA Centromere Ab, IgG, S 31290-0

Testing Algorithm

For more information see Connective Tissue Disease Cascade.

Secondary ID

9278

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.
National University Hospital-Singapore Additional Information:

Last updated 14/07/2026