Protocollo operativo per la verifica della comparabilit\ue0 dei risultati di laboratorio ottenuti su pi\uf9 procedure analitiche

Protocol to verify the comparability of quantitative laboratory results obtained with different measurementprocedures.With the growth and merging of clinical laboratories, very frequently analytical tests are performed onmultiple instruments within one or multiple locations. In these situations, there is the need of verifying thecomparability of patient results obtained with different analysers and/or different measurement procedures. Theimportance of this verification is further emphasised when considering that it is included into the ISO 15189specifications. This protocol provides step-by-step guidance on how to assess results comparability in differentscenarios. Up to four experimental designs are presented to meet laboratories\u2019 needs, with details and examples onfrequency of testing, definition of acceptability criteria, samples selection, sample size calculation, statistical analysisand reportin