DIN Standards Committee Health Technologies
Molecular in vitro diagnostic examinations - Specifications for pre-examination processes for urine and other body fluids - Isolated cell free DNA (ISO/DIS 18704:2024); German and English version prEN ISO 18704:2024
Abstract
This document specifies requirements and provides recommendations for the pre-examination phase of cell free DNA (cfDNA) from body fluid specimens other than blood, including but not limited to the collection, handling, storage, transport, processing and documentation of human body fluids, such as urine, cerebrospinal fluid (CSF), pleural effusions and saliva, intended for cfDNA examination. Processing includes multiple steps, such as centrifugation for specimen cleaning and isolation of cfDNA. This document is applicable to molecular in vitro diagnostic examinations performed by medical laboratories. It is also intended to be used by health institutions including facilities collecting and handling specimen, laboratory customers, in vitro diagnostics developers and manufacturers, biobanks, institutions and commercial organizations performing biomedical research, and regulatory authorities. Dedicated measures that need to be taken for cytohistological analysis of body fluid derived nucleated cells are not described in this document. Neither are measures for preserving and handling of pathogens, and other bacterial or whole microbiome DNA in body fluids described. Different dedicated measures need to be taken for preserving circulating cell free DNA (ccfDNA) from blood. These are not described in this document, but are covered in ISO 20186-3. NOTE International, national or regional regulations or requirements can also apply to specific topics covered in this document.
Begin
2023-02-06
WI
00140160
Planned document number
DIN EN ISO 18704
Project number
06302203
Responsible national committee
NA 176-08-08 AA - Quality management in medical laboratories
Responsible european committee
CEN/TC 140/WG 3 - Quality management in the medical laboratory
Responsible international committee
ISO/TC 212/WG 4 - Microbiology and molecular diagnostics
draft standard
Molecular in vitro diagnostic examinations - Specifications for pre-examination processes for urine and other body fluids - Isolated cell free DNA (ISO/DIS 18704:2024); German and English version prEN ISO 18704:2024
2024-12
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