Lambda, Antigen, Antiserum, Control

Human Lambda Free SPAPlus Kit

Calibration curve activity has increased over time in the kit lots listed.

Freelite Human Lambda Free Kit for use on SPAPLUS

A change in the calibration curve causing an increase in false prozone flags.

Optilite Freelite Lambda Free Kit

Batch numbers listed are reporting Lambda Free Light Chain results >114mg/L that are on average 33% lower than other Optilite Lambda Freelite batches. Therefore users moving to this batch will see results >114mg/L giving lower results and conversely when switching to the next batch results will be seen to shift upwards.

Freelite Human Lambda Free Kit (for use on the SPAPLUS) REF LK018.S

Due to calibration curves producing a higher activity than routinely expected and that there may be a decrease in separation between calibrator point 5 and calibrator point 6, which can be exacerbated with calibrator 6 activity reaches the optical ceiling of the SPA+ analyzer.