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  • Title: Blood sample collection and patient identification demand improvement: a questionnaire study of preanalytical practices in hospital wards and laboratories.
    Author: Wallin O, Söderberg J, Van Guelpen B, Stenlund H, Grankvist K, Brulin C.
    Journal: Scand J Caring Sci; 2010 Sep; 24(3):581-91. PubMed ID: 21050248.
    Abstract:
    UNLABELLED: Scand J Caring Sci; 2010; 24; 581-591 
 Blood sample collection and patient identification demand improvement: a questionnaire study of preanalytical practices in hospital wards and laboratories BACKGROUND:   Most errors in venous blood testing result from human mistakes occurring before the sample reach the laboratory. AIMS:   To survey venous blood sampling (VBS) practices in hospital wards and to compare practices with hospital laboratories. METHODS:   Staff in two hospitals (all wards) and two hospital laboratories (314 respondents, response rate 94%), completed a questionnaire addressing issues relevant to the collection of venous blood samples for clinical chemistry testing. RESULTS:   The findings suggest that instructions for patient identification and the collection of venous blood samples were not always followed. For example, 79% of the respondents reported the undesirable practice (UDP) of not always using wristbands for patient identification. Similarly, 87% of the respondents noted the UDP of removing venous stasis after the sampling is finished. Compared with the ward staff, a significantly higher proportion of the laboratory staff reported desirable practices regarding the collection of venous blood samples. Neither education nor the existence of established sampling routines was clearly associated with VBS practices among the ward staff. CONCLUSIONS:   The results of this study, the first of its kind, suggest that a clinically important risk of error is associated with VBS in the surveyed wards. Most important is the risk of misidentification of patients. Quality improvement of blood sample collection is clearly needed, particularly in hospital wards.
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