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
Reference Laboratory
Quest Nichols (34887)
Special Testing
Specimen Requirements

Collect specimen in a red top tube; do not use SST tube. Centrifuge, aliquot serum into a plastic vial and freeze.

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

Test performed by Quest Diagnostics-Nichols Institute.

CPT Code