Tumor Necrosis Factor

Centralized Core Laboratory:Chemistry

Test ID/Workstation: TUMNF MAYO

Specimen Type: Blood

Tube Type: Red top (no additive) tube

Collection Volume: 2.5 mL (minimum 1.25 mL)

Storage: Frozen

Availability: Sent to reference lab, Days performed: Mon

Methodology: Immunoassay

Special Instructions: Allow blood to clot 10-15 minutes, centrifuge, and separate serum from cells. Freeze ASAP.

Cytokine levels may demonstrate diurnal variation. Recommend cytokine levels be determined at the same time of day for improved longitudinal comparison.

Lab/Phone: 330-543-8418

TAT: 6-18 days

Additional Info: Reference range: 1.2-15.3 pg/mL

CPT Code: 83520

Synonyms: Cachectin

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