The relationship between vacuum and hemolysis during catheter blood collection: a retrospective analysis of six large cohorts

摘要

Background: Blood collection through intravenous (IV) catheters is a common practice at emergency departments (EDs). This technique is associated with higher in vitro hemolysis rates and may even be amplified by the use of vacuum collection tubes. Our aim was to investigate the association of five different vacuum tubes with hemolysis rates in comparison to an aspiration system under reallife conditions and to propose an equation to estimate the amount of hemolysis, depending on the vacuum collection tube type.