Tumor Necrosis Factor-α
Also known as: Cachectin
Use
This test is used for measurement of Tumor Necrosis Factor-α levels in serum.
Special Instructions
Allow blood sample collected in serum separator tube to clot at room temperature for 30 minutes prior to centrifugation. Transfer the serum into a Labcorp PP transpak frozen purple tube with screw cap and freeze immediately. Ensure that samples sit on the clot for no more than 30 minutes to avoid higher TNF-alpha levels. Submit separate frozen specimens for each test requested to avoid delays.
Limitations
This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration (FDA).
Methodology
Immunoassay (ELISA)
Biomarkers
LOINC Codes
- 3074-2
- 3074-2
Result Turnaround Time
3-7 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.4 mL
Container
Red-top tube or gel-barrier tube
Collection Instructions
Allow blood sample collected in serum separator tube to clot at room temperature for 30 minutes prior to centrifugation. Transfer the serum into a Labcorp PP transpak frozen purple tube with screw cap. Freeze immediately.
Storage Instructions
Freeze.
Causes for Rejection
Nonfrozen specimen; nonserum specimen; gross lipemia; gross hemolysis
Stability Requirements
| Temperature | Period |
|---|---|
| Frozen | 9 days |