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Interleukin-6 (IL-6), Serum : 34473
MessageCRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Test Code
INTL6 or 34473
Alias/See Also
IL-6; Cytokine
CPT Codes
83529
Instructions
Cytokine levels may demonstrate diurnal variation. Recommend cytokine levels be determined at the same time of day for improved longitudinal comparison. No biotin supplements 48 hours prior to blood draw.
Serum separator tube or Plain red.
Serum separator tube or Plain red.
Transport Container
Centrifuge the serum separator or plain red tube and aliquot 1 mL serum into a standard transport tube. (Min: 0.5 mL)
Transport Temperature
Frozen.
Specimen Stability
After separation from cells: Ambient: 24 hours; Refrigerated: 48 hours; Frozen: 7 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Non-frozen specimens. Gross hemolysis.
Methodology
Immunoassay
Setup Schedule
Thursday
Report Available
5-12 days (From receipt at performing laboratory)
Limitations
This test was performed using a kit that has not been approved or cleared by the FDA. The analytical performance characteristics of this test have been determined by Quest Diagnostics. This test should not be used for diagnosis without confirmation by other medically established means.
Reference Range
Effective 2-18-2019
< 5.00 pg/mL
< 5.00 pg/mL
Clinical Significance
To evaluate the level of IL-6 in serum samples.
Performing Laboratory
Quest Diagnostics
