Interferon gamma, Serum
Also known as: IFNG DO
Use
The Interferon gamma, Serum test is primarily used for research and to support studies on the pathogenesis of immune, infectious, allergic, or inflammatory disorders. It helps to understand the pathophysiology of these conditions but is not meant for routine clinical diagnostics due to its development as a laboratory-developed test (LDT). The results can provide insights into the body's immune response and potentially guide clinical management or research focused on cytokine activities in various disorders.
Special Instructions
Cytokine levels may demonstrate diurnal variation. For longitudinal comparison, it is recommended that cytokine levels be determined at the same time of day for consistency. Separate specimens must be submitted when multiple tests are ordered, and the serum should be transferred into an ARUP Standard Transport Tube after separation from cells.
Limitations
This assay has been developed as a laboratory-developed test and has not been cleared or approved by the US Food and Drug Administration. The performance characteristics of the test have been determined by ARUP Laboratories, highlighting that results should be interpreted within the context of the clinical presentation. Analytical limitations may include variability due to diurnal variations in cytokine levels, inter-laboratory differences, and sample handling issues. Refrigerated and contaminated specimens are not acceptable for testing and can lead to inaccurate results.
New York Approved
Methodology
Immunoassay (Multiplex Protein Panel)
Biomarkers
LOINC Codes
- 27415-9
Result Turnaround Time
1-4 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.4 mL
Container
ARUP Standard Transport Tube
Collection Instructions
Separate serum from cells ASAP or within 2 hours of collection. Transfer to ARUP Standard Transport Tube.
Storage Instructions
Ship frozen. Unacceptable if not frozen.
Causes for Rejection
Refrigerated specimens. Contaminated or heat-inactivated specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 30 minutes |
| Refrigerated | Unacceptable |
| Frozen | 1 year |