Interferon-alpha

Interferon-alpha

Test Code

34887
83520
34887
83520
In-home collection is not available in your area through Quest Mobile.

Clinical Significance

Interferon-alpha - 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.

Test Resources

None found for this test
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Test Details

Methodology

Enzyme Linked Immunosorbent Assay (ELISA)

Assay Category

This test was performed using a kit that has not been cleared or approved by the FDA. The analytical performance characteristics of this test have been determined by Quest Diagnostics. This test should not be used for diagnosis without confirmation by other medically established means.

Reference Range(s)

≤3 IU/mL

LOINC® Codes, Performing Laboratory

Service Area must be determined

Methodology

Enzyme Linked Immunosorbent Assay (ELISA)
This test was performed using a kit that has not been cleared or approved by the FDA. The analytical performance characteristics of this test have been determined by Quest Diagnostics. This test should not be used for diagnosis without confirmation by other medically established means.

Reference Range(s)

≤3 IU/mL
Service Area must be determined

Preferred Specimen(s)

1 mL frozen serum collected in a red-top tube (no gel)

Minimum Volume

0.5 mL

Collection Instructions

Keep samples frozen. Freeze within 30 minutes of draw.

Transport Container

Transport tube

Transport Temperature

Frozen

Specimen Stability

  • Room temperature: Unacceptable
  • Refrigerated: Unacceptable
  • Frozen: 30 days

Reject Criteria

Gross hemolysis • Lipemia • Icteric • Heat inactivated serum • Serum separator tube (SST) • CSF and other body fluids • Received refrigerated • Received room temperature

Setup Schedule

Service Area must be determined
1 mL frozen serum collected in a red-top tube (no gel)
0.5 mL
Keep samples frozen. Freeze within 30 minutes of draw.
Transport tube
Frozen
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days
Gross hemolysis • Lipemia • Icteric • Heat inactivated serum • Serum separator tube (SST) • CSF and other body fluids • Received refrigerated • Received room temperature
Service Area must be determined
In-home collection is not available in your area through Quest Mobile.
Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

The tests listed by specialty and category are a select group of tests offered. For a complete list of Quest Diagnostics tests, please adjust the filter options chosen, or refer to our Directory of Services.

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