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Order Code TNFA Tumor Necrosis Factor (TNF), Plasma


Specimen Required


Collection Container/Tube: Lavender-top (EDTA)

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions:

1. Immediately after specimen collection, place the tube on wet ice.

2. Centrifuge at 1,500 x g for 10 minutes and aliquot plasma.

3. Freeze specimen within 30 minutes.


Useful For

Evaluation of patients with suspected systemic infection, in particular infection caused by gram-negative bacteria

 

Evaluation of patients with suspected chronic inflammatory disorders, such as rheumatoid arthritis, inflammatory bowel disease, or ankylosing spondylitis

Method Name

Electrochemiluminescence

Reporting Name

Tumor Necrosis Factor, P

Specimen Type

Plasma EDTA

Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma EDTA Frozen (preferred) 21 days
  Refrigerated  24 hours

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Reference Values

≤2.8 pg/mL

Day(s) and Time(s) Performed

Thursday, 3 p.m.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

83520

LOINC Code Information

Test ID Test Order Name Order LOINC Value
TNFA Tumor Necrosis Factor, P 3074-2

 

Result ID Test Result Name Result LOINC Value
63022 TNF, P 3074-2