title: Portable blood glucose meter values using different sampling ways: a validity study.
abstract: OBJECTIVE
  To identify the relevant differences between portable blood glucose meter readings in different sampling accesses blood and laboratory analysis.
  
  
  METHODS
  Quantitative validity study. Daily samples were collected from capillary blood, central venous access catheter and arterial catheter and the blood glucose values checked using portable blood glucose meter and laboratory analysis. The findings were analyzed with the Statistical Package for the Social Sciences - SPSS software.
  
  
  RESULTS
  Central venous catheter samples blood glucose meter readings were found to have the best correlation with the laboratory analysis results, considered as the gold-standard.
  
  
  CONCLUSIONS
  Hemodynamically unstable patients' capillary blood samples may provide false blood glucose results, and lead to inappropriate insulin solution management. Therefore, ideal blood glucose sampling is relevant to prevent insulin solution management errors.
authors.affiliation: Hospital Estadual Manuel Vitorino, Salvador, BA, Brasil.
authors.forename: Ana Paula Bello
authors.initials: AP
authors.lastname: Argollo
authors.affiliation: Unidade de Terapia Intensiva Neurológica, Hospital Espanhol e da Educação Permanente das Obras Sociais Irmã Dulce, Salvador, BA, Brasil.
authors.forename: Tássia Nery
authors.initials: TN
authors.lastname: Faustino
authors.affiliation: Unidade de Terapia Intensiva Geral, Hospital São Rafael.
authors.forename: Thiallan Nery
authors.initials: TN
authors.lastname: Faustino
authors.affiliation: Escola de Enfermagem, Universidade Federal da Bahia, Salvador, BA, Brasil.
authors.forename: Larissa Chaves
authors.initials: LC
authors.lastname: Pedreira