Days Set Up
Wednesday
Analytic Time

2 - 9 days

Soft Order Code
RNAP

Update Type: Test Down or Delayed

Test Updated: 03/02/2020

Synonyms
 
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All specimens should be accompanied by a requisition.

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Test Overview

Test Methodology

Enzyme-Linked Immunosorbant Assay (ELISA)

Test Usage

Evaluating patients suspected of having systemic sclerosis, when used in conjunction with centromere and Scl70 antibodies. Providing diagnostic and prognostic information in patients with systemic sclerosis.

Reference Range

<20.0 U (negative); 20.0 - 39.9 U (weak positive); 40.0 - 80.0 U (moderate positive); >80.0 U (strong positive).

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Instructions

Collect specimen in an SST or red top tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.

Yellow Top Tube
Red Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.4 mL serum

Billing Information

CPT Code
83520
Pro Fee Code
 
Insurance Auth Info
 
LOINC
 

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.

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