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  • 91292

Tumor Necrosis Factor-Alpha, Serum

Also known as: TNF, Alpha

Specimen:

Collect

  • One SST

Also Acceptable:
  • One Red Top

Submit

  • 1 mL (Min:0.4 mL) Serum . Submit Frozen. Submit in a Standard Transport Tube.

Special Handling

  • Separate aliquot required for each frozen test ordered
  • Separate from cells ASAP
  • Separate from cells within 2 hours of collection
  • Critical Frozen: Freeze serum within 30 minutes

    Note: Cytokine levels may demonstrate diurnal variation. For longitudinal comparison, it is recommended that cytokine levels be determined at the same time of day.

Rejection Criteria

  • Heat inactivated
  • Contaminated specimens
    Refrigerated specimens

Stability

Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 12 Month(s); Incubated: Unacceptable

Methodology

  • Quantitative Multiplex Bead Assay

Performed

Sun-Sat

Reported

2-5 Day(s)

CPT Codes

  • 83520

Components

  • 91292 - TNF, ALPHA
Last Updated: September 16, 2026 @ 9:13 am

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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT