Test Overview
Test Methodology

ELISA

Test Usage

The 14-3-3? protein appears to contribute to the pathologic process of joint erosion and, as such, is an emerging biomarker of joint damage in rheumatoid arthritis (RA) and psoriatic arthritis. Concentrations are significantly higher in people with active joint disease than in those with inactive RA or psoriasis without arthritis. Measurement of 14-3-3? complements RF and CCP antibody tests and may improve diagnostic sensitivity.

Reference Range *

<0.2 ng/mL

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

Test Details
Days Set Up
Monday - Thursday
Analytic Time

5 - 10 days

Soft Order Code
QETAP
MiChart Code
QETAP
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Quest Diagnostics Nichols Institute San Juan Capistrano 91455
    Section
    Special Testing
    Specimen Requirements
    Collection Instructions

    Collect specimen in red top tube. Spin and aliquot into a screw capped plastic tube. Send to Specimen Processing at room temperature.

    Normal Volume
    1 mL serum
    Minimum Volume
    0.5 mL serum
    Storage Temperature
    Ambient preferred, refrigerated, and frozen are acceptable
    Additional Information

    Test sent to Quest Diagnostics Valencia, performed by Quest Diagnostics Nichols Institute San Juan Capistrano

    Billing
    CPT Code
    83520
    Fee Code
    AA682
    NY State Approved
    No