Evaluation of patients with suspected systemic infection, in particular infection caused by gram-negative bacteria detection and for evaluation of patients with suspected chronic inflammatory disorders, such as rheumatoid arthritis, inflammatory bowel disease, or ankylosing spondylitis.
< or =2.8 pg/mL
Tumor necrosis factor (TNF)-alpha is a nonspecific marker associated with an inflammatory response, and is not diagnostic for any specific disease or disease process. Elevated concentrations of TNF-alpha must be interpreted within the clinical context of the patient. Normal concentrations of TNF-alpha do not exclude the possibility of an ongoing inflammatory process.
Days Test Performed
2 - 9 days
Soft Order Code
Tumor Necrosis Factor - Alpha
alpha-Tumor Necrosis Factor
TNF-Alpha, Highly Sensitive
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Offsite Collection Instructions
Collect specimen in a lavender top tube and immediately place on wet ice. Centrifuge, aliquot serum into a plastic vial and freeze within 30 minutes of collection.
0.5 mL serum
0.3 mL serum
Test sent to Mayo Medical Laboratories.