Tumor Necrosis Factor-Alpha (TNF-a)

Message

Sendout, Mayo test code: FNFAS

Test Code

LAB5211281

Alias/See Also

TNF alpha
FNFAS

CPT Codes
83520

Preferred Specimen

1 mL serum from a red tube

Minimum Volume

0.5 mL

Other Acceptable Specimens

Serum gel tube

Instructions

1. Draw blood in a plain red-top tube(s), serum gel tube(s) is acceptable.
2. Centrifuge and send 1 mL of serum frozen in a plastic vial.

Transport Container

Plastic vial

Transport Temperature

Frozen

Specimen Stability

Frozen: 14 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolysis: Mild OK; Gross Reject
Thawing: Warm Reject; Cold Reject
Lipemia: Mild OK; Gross Reject
Icterus: Mild OK; Gross Reject

Methodology
Electrochemiluminescence via sandwich immunoassay

FDA Status
Approved

Setup Schedule

Monday, Wednesday, Friday

Report Available

5-11 days

Reference Range

Included with report

Clinical Significance

Cytokines have emerged as molecules of importance in the regulation of many immunologic processes in the cell. The ability to accurately measure quantitative and qualitative differences in cytokine production is becoming increasingly important to the understanding of normal and pathological processes.

Performing Laboratory
Mayo Clinic Laboratories, Rochester, Minnesota

Additional Information
TNF-alpha (TNF-a) Serum

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.