Cardoso, AnaCorreia, HelenaFaria, Ana Paula2018-02-222018-02-222017-03http://hdl.handle.net/10400.18/5014Preanalytical phase is more prone to errors due to non-automated activities such as collection, handling, transportation and preparation of specimens. Since 2007, PNAEQ (Programa Nacional de Avaliação Externa da Qualidade) provides a specific program on preanalytical phase. In 2016, it was proposed to laboratories to audit their own preanalytical phase. The aim is to involve laboratories in evaluation and monitoring process, giving them tools for their own evaluation of this important extra-analytical phase.engAvaliação Externa da QualidadeAEQPrograma Nacional de Avaliação Externa da QualidadePNAEQFase Pré-AnalíticaPreanalytical Phaseconference object