Beckman coulter has identified that Synchron Systems Cholesterol Reagent lot M106450 may fail with out of calibration range low (OCR low) and/or back to back (B/B) errors. Low quality control recovery failures may be observed after passing calibration. Brown particulates in compartment C of the reagent cartridge may be observed. The continued use of Synchron Systems cholesterol reagent lot M106450 may lead to: -Further failed QC and/or calibrations -Erroneous low Cholesterol patient results Recall start date: 2021-11-08