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Order Code LABRNAP RNA Polymerase III IgG Antibody

Additional Codes

ARUP Test Code: 2001601

Useful For

First-line test for the evaluation of systemic sclerosis, or connective tissue disease with renal or cutaneous involvement. Preferred test is Comprehensive Systemic Sclerosis Panel (3000480).

Specimen Requirements

ARUP's Test Catalog Link: https://ltd.aruplab.com/Tests/Pub/2001601

Collect: SST or Red Top Tube

Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.2 mL)

Storage/Transport Temperature: Refrigerated

Specimen Stability

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year

Day(s) Test Set Up

Sun, Tue, Thu

Performing Laboratory

ARUP Laboratories

Test Classification and CPT Coding

83516 modifier 90

Methodology

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

Reference Range

19 Units or less            Negative
20-39 Units                   Weak Positive
40-80 Units                   Moderate Positive
81 Units or greater       Strong Positive