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.

Test Details
Days Set Up
Wednesday
Analytic Time

2 - 9 days

Soft Order Code
RNAP
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Mayo RNAP
    Section
    Special Testing
    Specimen Requirements
    Collection Instructions

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

    Normal Volume
    0.5 mL serum
    Minimum Volume
    0.4 mL serum
    Additional Information

    Test sent to Mayo Medical Laboratories.

    Billing
    CPT Code
    83516
    Fee Code
    AA733
    NY State Approved
    No