Nke Ateba, G Université de Yaoundé 1 - Faculté de Médecine et des Sciences Biomédicales, Cameroun , Okomo Assoumou, MC Université de Yaoundé 1 - Faculté de Médecine et des Sciences Biomédicales, Cameroun , Adiogo, D Université de Yaoundé 1 - Faculté de Médecine et des Sciences Biomédicales, Cameroun , Bombah Yangrelo, Jl Université de Yaoundé 1 - Faculté de Médecine et des Sciences Biomédicales, Cameroun

Évaluation de la Phase Pré-Analytique dans quelques Laboratoires d’Analyses Médicales de laVille de Yaoundé

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INTRODUCTION: Conducting analysis in medical biology requires three phases of quality assurance. These are the preanalytic, analytic and post-analytic phases. International and national references documents describe the technical requirements for successful implementation of each of these phases. In a quality assurance system the pre-analytic phase plays a crucial role in the success of the subsequent phases it is in this phase that the sample to be analysed is obtained and the prescriber request is addressed. OBJECTIVES: The objective of this study was to evaluate the pre-analytic practices of biomedical laboratories in Yaounde. METHODS: We conducted a cross-sectional descriptive study in biomedical laboratories located in Yaounde. The heads of these laboratories were interviewed using a questionnaire developed from the ISO 15189 French Accreditation Committee norms and standards evaluation checklist and the French and Cameroonian Guides for Good Laboratory Practices. The interview covered the daily pre-analytic procedures carried out by each laboratory. The responses were coded and scored to determine the quality of pre-analytic practices. RESULTS: Eight laboratories were visited, of which 6 were public and 2 were private. We noted important deficits in the completeness of prescriptions with regards to the name and address of the prescriber and clinical information. There was no distinction between reception and sample-collection rooms especially in public laboratories. Almost all the laboratories lacked user guides for taking samples. There was also a lack of material for transporting samples and no formal procedure for receiving samples. The final score for the pre-analytic procedure were less than 40 % in five out of six public laboratories and greater than 60% in the private labs. CONCLUSION: Medical laboratory procedures are inadequate at all stages of the pre-analytic phase, especially in the public sector.

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pre , analytical phase , practices , laboratories , evaluation

Health Sciences an‎d Diseases

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