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  • 91288

Interleukin 6, Serum

Also known as: IL-6

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

  • Critical Frozen
  • Separate aliquot required for each frozen test ordered
  • Separate from cells within 2 hours of collection
  • Freeze serum within 30 minutes.
    Cytokine levels may demonstrate diurnal variation. For longitudinal comparison, it is recommended that cytokine levels be determined at the same time of day.
    Stability: Ambient 30 minutes after separation from cells.

Rejection Criteria

  • Bacterially Contaminated Samples
  • Heat inactivated
  • 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

  • 83529

Components

  • 91288 - IL-6
Last Updated: November 9, 2026 @ 10:13 am

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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT