Update Type: Test Code Change
Test Updated: 11/20/2024
Test Overview
Test Methodology

Enzyme-Linked Immunosorbent Assay (ELISA)

Test Usage

IFNalpha is mainly produced by monocytes/macrophages, lymphoblastic cells and fibroblasts, but different types of virus activated cells may produce the cytokine. IFNalpha shows antiviral, antiparasitic, and antiproliferative properties. Increased levels suggest recent or ongoing viral or parasitic infection.

Reference Range *

< or = 3 IU/mL

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

Test Details
Analytic Time

7 - 14 days

Soft Order Code
SLM
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Quest Nichols (34887)
    Section
    Special Testing
    Specimen Requirements
    Collection

    Collect specimen in a red top tube; DO NOT USE SST TUBE . Centrifuge, aliquot serum into a plastic vial and freeze within 30 minutes of collection.

    Collection Instructions

    Collect specimen in a red top tube; <b><span color=red>DO NOT USE SST TUBE </span> </b>. Centrifuge, aliquot serum into a plastic vial and freeze within 30 minutes of collection. Send to Specimen Processing frozen

    Normal Volume
    1 mL serum
    Minimum Volume
    0.5 mL serum
    Storage Temperature
    STRICT FROZEN
    Rejection Criteria
    SST tube not acceptable.
    Additional Information

    Test performed by Quest Diagnostics-Nichols Institute.

    Billing
    CPT Code
    83520
    NY State Approved
    No