Preanalytical EQA for PTS: A Modern Pneumatic Tube System Monitoring Tool for Clinical Laboratories

Labquality has introduced a new EQA scheme for PTS, using a solution developed by Motryx Inc, where sample rejection probability due to transport-induced hemolysis is modelled based on laboratory set analyte-specific hemolysis index (HI) cutoffs and force measurements in the PTS. Based on the results and experiences of our pilot study performed in the spring of 2021, we conducted the first EQA round during the fall of 2021 of which results are presented here.