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Beaumont Laboratory

Tumor Necrosis Factor Alpha

Tumor Necrosis Factor-Alpha, ARUP #51539, EPIC: LAB6347, SOFT: XTNFA

Specimen Collection Criteria

Collect (preferred specimen): One Gold-top SST tube.
Also acceptable: One plain Red-top or Dark Green-top Lithium Heparin tube.

Critical frozen. Send specimen for processing immediately after collection. 

Physician Office/Drawsite Specimen Preparation

Critical frozen. Let specimen clot 30-60 minutes then centrifuge to separate serum from cells within two hours of collection. Transfer serum to a plastic transport tube and freeze (-20°C/-4°F or below) within 30 minutes.

Preparation for Courier Transport

Transport: 1.0 mL serum, frozen (-20°C/-4°F or below). (Min: 0.3 mL)

Rejection Criteria

  • Specimens not collected and processed as indicated.

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 30 minutes
Refrigerated (2-8°C or 36-46°F): Unacceptable
Frozen (-20°C/-4°F or below): 1 year

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Sendout Laboratory with any questions.

Laboratory

Sent to ARUP Laboratories, Salt Lake City, UT.

Performed

Monday, Wednesday, Friday.
Results available in 2-5 days.

Reference Range

0-22 pg/mL or less.

Test Methodology

Quantitative Multiplex Bead Assay.

Interpretation

This test uses a kit designated by the manufacturer as "for research use, not for clinical use." The performance characteristics of this test were validated by ARUP Laboratories, Inc. The U.S. Food and Drug Administration (FDA) has not approved this test. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. ARUP is authorized under Clinical Laboratory Improvement Amendments (CLIA) and by all states to perform high-complexity testing.

Clinical Utility

Elevated levels are seen in septic shock as well as in the CSF of patients with meningitis and other central nervous system processes such as multiple sclerosis.

CPT Code

83520.

Test Codes

ARUP #51539, EPIC: LAB6347, SOFT: XTNFA

Last Updated

12/19/2016

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This directory currently reflects information only for specimens collected and/or processed at the Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.