Tumor Necrosis Factor




Test Mnemonic

TNFA2

CPT Codes

  • 83520 - QTY (1)

LOINC ®

3074-2

Aliases

  • TNF

Performing Laboratory

ARUP


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumSST (Gold) Frozen, CriticalCritical Frozen. Separate serum from cells ASAP or within 2 hours of collection. Transfer into standard aliquot tube and freeze. Additional specimens must be submitted when multiple tests are ordered.

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumNo additive (Red) Frozen, CriticalCritical Frozen. Separate serum from cells ASAP or within 2 hours of collection. Transfer into standard aliquot tube and freeze. Additional specimens must be submitted when multiple tests are ordered.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.4 mL     

Stability

Environmental Condition Description
AmbientAfter separation from cells: 30 minutes
RefrigeratedAfter separation from cells: Unacceptable
FrozenAfter separation from cells: 1 year

Days Performed

Sun - Sat

Turnaround Time

2 - 5 days

Methodology

Name Description
Quantitative Multiplex Bead Assay 

Reference Range

Tumor Necrosis Factor - alpha, Serum
Sex Age From Age To Type Range Range Unit
       Normal< = 7.2pg/mL

Special Info

CRITICAL FROZEN. Additional specimens must be submitted when multiple tests are ordered. Refrigerated, contaminated or heat-inactivated specimens are unacceptable. This test is New York DOH approved.

Clinical Info

Cytokine levels may demonstrate diurnal variation. For longitudinal comparison, it is recommended that cytokine levels be determined at the same time of day. Results are used to understand the pathophysiology of immune, infectious, or inflammatory disorders, or may be used for research purposes.