In this article, a review is given of all elements involved in the validation of clinical laboratory results. Validation will include: 1. Method validation, 2. Instrument validation, 3. Preanalytical validation procedures, 4. Analytical validation procedures, and 5. Postanalytical validation procedures. Within the scope of this publication, all of these different elements are discussed in detail. The management of all these steps is the only way to guarantee a correct result, if this is used either for patient treatment or in clinical evaluation studies.
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