TNFa
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Tumour Necrosis Factor Alpha (TNF-Alpha), Plasma
Test ID: TNFA P
Test
Aliases/Synonyms
Method
Automated fluorescence immunoassay
Platform
Proteinsimple ELLA
This analysis is performed at Hospital for Sick Children, Toronto, ON, CA
Report Includes
Tumour Necrosis Factor Alpha (TNF-Alpha);
This test is available as an individual test order or it may be ordered as part of a three-test profile Cytokine Panel 2 (TNFA, CXCL9, IFNG), Plasma. The price for the three-test profile is less than the combined total price of any two or three of these tests ordered individually.
This test is available as an individual test order or it may be ordered as part of a three-test profile Cytokine Panel 2 (TNFA, CXCL9, IFNG), Plasma. The price for the three-test profile is less than the combined total price of any two or three of these tests ordered individually.
Specimens
Plasma (EDTA)
This test is also available in serum at Quest Diagnostics - see Tumor Necrosis Factor - Alpha (TNF), Serum.
This test is also available in serum at Quest Diagnostics - see Tumor Necrosis Factor - Alpha (TNF), Serum.
Test Location
Hospital for Sick Children, 555 University Avenue, Toronto ON M5G 1X8
Test Version
22-Jun-2022
Specimen
Specimens
Plasma (EDTA)
This test is also available in serum at Quest Diagnostics - see Tumor Necrosis Factor - Alpha (TNF), Serum.
This test is also available in serum at Quest Diagnostics - see Tumor Necrosis Factor - Alpha (TNF), Serum.
Collection Containers
Lavender top (EDTA)
Sample Volume
0.5 mL x 2
Minimum Volume
0.25 mL x 2
Collection & Handling
Handling Information
Separate within 30 minutes of collection. Centrifuge for 15 minutes at 1000 RCF. Prepare two 0.5 mL aliquots (min 2 x 0.25 mL). Store and ship frozen.
Additional Information
Avoid freeze-thaw cycles
Stability
| Ambient | Unacceptable |
|---|
Additional Stability Information
Avoid freeze-thaw cycles
Rejection Criteria
| Hemolysis | Gross |
|---|---|
| Lipemia | Gross |
Test Version
22-Jun-2022
Performance / Interpretation
Method
Automated fluorescence immunoassay
Platform
Proteinsimple ELLA
This analysis is performed at Hospital for Sick Children, Toronto, ON, CA
Turnaround Time
14 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| TNF-Alpha | pg/mL |
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Results should be interpreted in the context of the clinical presentation, therapeutic intervention, and additional laboratory data. Assay performance has not been validated in the context of treatment monitoring following administration of cytokine-blocking therapies; interpret results in this context with caution.
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Test Location
Hospital for Sick Children, 555 University Avenue, Toronto ON M5G 1X8
Test Version
22-Jun-2022
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| TNFA P | 64153TNF-a | pg/mL |
| 64464TNF-A Comment |
Test Version
22-Jun-2022