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Tumor Necrosis Factor-Alpha, Highly Sensitive [34485X]
Test Code
3553
CPT Code(s)
83520
Preferred Specimen(s)
1 mL Serum
Instructions: Collect blood in a red-top Vacutainer
containing no additives. Allow blood to clot (10-15
minutes) at room temperature. Centrifuge and separate
the serum from the cells. Transfer the serum to a clean
12x75 mm tube. Freeze as soon as possible.
Cytokine levels may demonstrate diurnal variation.
Recommend cytokine levels be determined at the same time
of day for improved longitudinal comparison.
Rejection Criterion: Samples drawn in serum separator
tubes.
Minimum Volume
0.5 mL
Specimen Container
Red-top tube (no gel)
Transport Temperature
Frozen
Specimen Stability
Room Temperature: unacceptable
Refrigerated: unacceptable
Frozen: 9 months
Methodology
Enzyme-Linked Immunosorbent Assay
Performing Laboratory
Quest Diagnostics Nichols Inst San Juan Capistrano
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130
Setup Days
Monday Night
Report available: 6 Days
Reference Range(s)
1.2 - 15.3 pg/mL
Clinical Significance
Test is for Research Use Only and is for use in patients
previously diagnosed with T-cell lymphoma.
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
(The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.)
* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.