Randox’s serum indices, IQC and EQA, provide a full range of clinically relevant testing levels, including a negative and three positives, as well as 14-day stability when reconstituted at 2°C to 8°C. Designed for pre-analytical assessment of HIL interferences, the controls aid in reporting either quantitative or qualitative results, helping gain and maintain confidence in laboratory testing methods and results. This control monitors an IVD instrument’s response in the detection of hemolyzed, icteric, and lipemic (HIL) samples.