Sm/RNP Antibody

Sm/RNP Antibody

Test Code

38567
86235
38567
86235
In-home collection may be available in your area for purchase through Quest Mobile.

Clinical Significance

Sm/RNP Antibody - Smith (Sm)/U1-RNP Antibody is detected in patients with mixed connective tissue disease (having features of systemic lupus erythematosus (SLE), scleroderma, and polymyositis).

Test Resources

Algorithm

ANA, IFA, Cascade with Rheumatoid Arthritis Panel 2, with Reflexes (test code 94954).

Clinical Focus

Autoimmune Rheumatic and Related Diseases

Clinical Focus

Idiopathic Inflammatory Myopathies: Laboratory Support for Diagnosis

Clinical Focus

Systemic Sclerosis: Laboratory Markers for Diagnosis and Prognosis

Test Summary

ANA, IFA, Cascade and Rheumatoid Arthritis Panel 2, With Reflexes

Test Summary

ANAlyzeR ANA, IFA with Reflex Titer/Pattern, Systemic Autoimmune Panel 1

Test Details

Methodology

Immunoassay (IA)

Reference Range(s)

<1.0 Negative

Alternative Name(s)

Ribonucleoprotein,ENA Antibodies,Ribonuclear Protein Antibody,RNP Antibody,Extractable Nuclear Ab,Smith Antibodies

LOINC® Codes, Performing Laboratory

Service Area must be determined

Methodology

Immunoassay (IA)

Reference Range(s)

<1.0 Negative

Alternative Name(s)

Ribonucleoprotein,ENA Antibodies,Ribonuclear Protein Antibody,RNP Antibody,Extractable Nuclear Ab,Smith Antibodies
Service Area must be determined

Preferred Specimen(s)

1 mL serum

Minimum Volume

0.5 mL

Transport Container

Transport tube

Transport Temperature

Room temperature

Specimen Stability

  • Room temperature: 4 days
  • Refrigerated: 7 days
  • Frozen: 30 days

Reject Criteria

Gross hemolysis • Grossly lipemic • Grossly icteric

Setup Schedule

Service Area must be determined
1 mL serum
0.5 mL
Transport tube
Room temperature
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days
Gross hemolysis • Grossly lipemic • Grossly icteric
Service Area must be determined
In-home collection may be available in your area for purchase through Quest Mobile.
Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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