Tumor Necrosis Factor-Alpha

Primary unit: pg/mL
LOINC codes: 3074-2
Tests that measure Tumor Necrosis Factor-Alpha: Labcorp 1, Quest Diagnostics 1

Tests

Check the catalog code, specimen, method and preparation for every test that measures Tumor Necrosis Factor-Alpha. Select up to five tests to compare them side by side.

Labcorp 1 test

Single-analyte tests

Tumor Necrosis Factor-α 140673
Serum · Fasting not stated · Turnaround 3 - 7 days
Method and collection
Method
Enzyme-linked immunosorbent assay (ELISA)
Collection
Allow blood sample collected in serum separator tube to clot at room temperature for 30 minutes prior to centrifugation. Allowing samples to sit on the clot for more than 30 minutes may result in higher TNF-alpha levels. Transfer the serum into a Labcorp PP transpak frozen purple tube with screw cap (Labcorp No. 49482). Freeze immediately and maintain frozen until tested. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested
Reference notes
0.0−2.2 pg/mL
Labcorp catalog page

Quest Diagnostics 1 test

Single-analyte tests

Tumor Necrosis Factor-Alpha, Highly Sensitive 34485
Serum · Fasting not stated · Turnaround Set up: Tues (a.m.); Report available: 8 days
Method and collection
Method
Immunoassay (IA)
Collection
Collect blood in a red-top tube (no gel). 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. Note: Cytokine levels may demonstrate diurnal variation. Recommend cytokine levels be determined at the same time of day for improved longitudinal comparison.
Reference notes
0.56-1.40 pg/mL
Quest Diagnostics catalog page

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Sources

Labcorp test catalog
1 test: codes, specimens, methods, preparation and reference intervals.
Quest Diagnostics test catalog
1 test: codes, specimens, methods, preparation and reference intervals.
LOINC 3074-2
Regenstrief Institute codes that identify the same result across labs.
Search ClinicalTrials.gov for Tumor Necrosis Factor-Alpha
Registered studies that measure Tumor Necrosis Factor-Alpha, on the U.S. National Library of Medicine registry.

Verify these ranges and sources

We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.

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