FFTUM - Specimen: Tumor Necrosis Factor-Alpha, Highly Sensitive

Test Catalog

Test Name

Test ID: FFTUM    
Tumor Necrosis Factor-Alpha, Highly Sensitive

Specimen Type Describes the specimen type needed for testing

Serum Red

Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Collect blood in red-top vacutainer containing no additives. Allow blood to clot (10 - 15 minutes) at room temperature. Centrifuge and separate the serum from the cells. Transfer 1.0 mL serum to clean plastic vial, and 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.

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.

0.5 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected




Warm reject; Cold reject







Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
Serum RedFrozen270 days