title: [Extraction of blood samples in the critical patient].
abstract: OBJECTIVE
  To evaluate the competence of nursing in blood extractions in the Intensive Care.
  
  
  METHODS
  Transversal descriptive study was done during one week of November 2010. 90 nurses working in intensive care units participate in the study. We collected information related to the normal practice.
  
  
  RESULTS
  When the patient has an arterial catheter, the nurses choose this way to extract the blood samples. The volume of blood extracted through the arterial catheter before taking the sample, through a venous catheter and the volume of blood that is taken for an arterial blood gas analysis depends of the nurse unit. A 94,2 % of the nurses think that it is a relevant item but there were no protocols.
  
  
  CONCLUSIONS
  The volume of blood extracted previous obtaining the sample, and the blood taking for analysis is higher than the minimum recommended. There are no protocols in this line.
authors.affiliation: Hospital Universitario de La Princesa, Madrid.
authors.forename: Tania
authors.initials: T
authors.lastname: Tineo Drove
authors.affiliation: Hospital Universitario de La Princesa, Madrid.
authors.forename: María Angeles
authors.initials: MA
authors.lastname: Santos Ampuero
authors.affiliation: Hospital Universitario de La Princesa, Madrid.
authors.forename: Sonia
authors.initials: S
authors.lastname: Jiménez García
authors.affiliation: Hospital Universitario de La Princesa, Madrid.
authors.forename: Itziar
authors.initials: I
authors.lastname: Iturralde González
authors.affiliation: Hospital Universitario de La Princesa, Madrid.
authors.forename: Mercedes
authors.initials: M
authors.lastname: Gómez Puyuelo
mesh_terms: D001800:Blood Specimen Collection / Q000379:methods / Q000451:nursing* / Q000592:standards*; D002983:Clinical Competence; D016638:Critical Illness; D003430:Cross-Sectional Studies; D006801:Humans
vernacular_title: Extracción de muestras sanguíneas en el paciente crítico: práctica enfermera.