Test directory: Interleukin-6, Serum

Ordering Code 7199
Test Name Interleukin-6, Serum
Alias IL-6
Cytokine IL-6
Preferred Specimen Serum
Preferred Container SST (Gold)
Other Specimen/Container Serum in Plain (Red)
Optimum Volume 1.5 mL
Collection Instructions No biotin supplements 48 hours prior to draw
Cytokine levels may demonstrate diurnal variation. Recommend cytokine levels be determined at the same time of day for improved longitudinal comparison.
Handling Instructions Do not thaw.
Transport Requirements Oahu: Ambient
Airline: Frozen
Specimen Stability Ambient: 24 Hours
Refrigerated: 48 Hours
Frozen: 7 Months
Rejection Criteria Grossly hemolyzed, Received ambient or refrigerated at reference laboratory, Thawed
Avail. Stat NO
Analytic Time 14 Days
Methodology Immunoassay (IA)
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Interleukin-6 ALL See report.