ESR-Chex Plus is a bi-level quality control for evaluating the accuracy and precision of automated erythrocyte sedimentation rate testing methods that use EDTA tubes. This whole blood control is manufactured from human red blood cells and can be used in the same manner as a patient sample. It is available in two levels, normal and abnormal, and each vial label is barcoded for automatic QC file archive.

The CUBE 30 scans the vial barcode within the instrument, whereas the MINI-CUBE scans an external barcode on the assay sheet.

ESR-Chex Plus is assayed for the Diesse CUBE 30 Touch and Diesse MINI-CUBE ESR analyzers.