Les erreurs influençant l'interprétation des hémogrammes : approche centrée sur la lignée plaquettaire

Abstract

The hemogram is a key diagnostic tool, commonly used to identify and monitor hematological abnormalities. However, its reliability can be compromised by errors that may occur at each stage of the process, from the pre-analytical phase to the interpretation of results. These incidents can involve various professionals participating in its execution and utilization. This study aims to analyze the main sources of errors throughout the studied process, assess their frequency at each stage, and propose concrete measures to improve the reliability of result interpretation. To do so, a mixed methodological approach was adopted, combining a descriptive survey of healthcare professionals involved in the CBC workflow, as well as a prospective and retrospective study conducted at the hematology laboratory of Sétif University Hospital, focusing on the analysis of the platelet lineage.Résumé Page | CLIII The results show that pre-analytical errors, representing 74% of incidents, are mainly related to non-compliance with best practices, implicating human responsibility. This justifies the need for better staff training and computerization of procedures to secure critical steps. The platelet lineage, identified by nearly 50% of specialists as the most prone to analytical interferences, accounts for 26% of interpretation errors. The post-analytical phase remains essential to ensure the validity of results.