For further information, visit www.audiciaux.fr, www.scobex-rgpd-dpo.fr and www.dpo-externe-rgpd-france.fr. In a world where the quality and safety of medical analyses are paramount, ISO 15189 is the benchmark standard. This practical guide helps laboratories, biologists and quality managers understand, implement and maintain this demanding standard. Packed with practical tools, models and advice, it transforms regulatory constraints into levers for performance and excellence. An essential resource for building trust and ensuring impeccable practices.