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Test Code RNP RNP Antibodies, IgG, Serum

Additional Codes


Powerchart: Anti RNP Antibody

Epic: LAB772 Ribonucleic Protein Antibody, IgG

MA Cerner: RNP Ab, IgG.

Reporting Name

RNP Ab, IgG, S

Useful For

Evaluating patients with signs and symptoms of a connective tissue disease in whom the test for antinuclear antibodies is positive

Testing Algorithm

See Connective Tissue Disease Cascade (CTDC) in Special Instructions.

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type


Specimen Required


Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 0.5 mL

Specimen Minimum Volume

0.35 mL

Specimen Stability Information

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

Reference Values

<1.0 U (negative)

≥1.0 U (positive)

Reference values apply to all ages.

Day(s) and Time(s) Performed

Monday through Saturday; 4 p.m.

Sunday; 11 a.m.

Test Classification

This test has been cleared or approved by the U.S. 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.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
RNP RNP Ab, IgG, S 31588-7


Result ID Test Result Name Result LOINC Value
RNP RNP Ab, IgG, S 31588-7

Reject Due To


Mild OK; Gross reject


Mild OK; Gross reject


Mild OK; Gross OK



Method Name

Multiplex Flow Immunoassay