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
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
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.
2 - 9 days
- alpha-Tumor Necrosis Factor
- TNF-Alpha, Highly Sensitive
Collect specimen in a lavender top tube and immediately place on wet ice. Centrifuge, aliquot plasma into a plastic vial and freeze within 30 minutes of collection.
Test sent to Mayo Clinic Laboratories.