• Journal of critical care · Jun 2023

    Assessing a standardized decision-making algorithm for blood culture collection in the intensive care unit.

    • Alana Siev, Elana Levy, Jen-Ting Chen, Inessa Gendlina, Austin Saline, Parry Mendapara, GongMichelle NgMNMontefiore Medical Center, Department of Critical Care Medicine, USA., and Ari Moskowitz.
    • Memorial Sloan Kettering Cancer Center, Department of Medicine, USA; Montefiore Medical Center, Department of Medicine, USA. Electronic address: sieva@mskcc.org.
    • J Crit Care. 2023 Jun 1; 75: 154255154255.

    PurposeBlood cultures are commonly ordered for patients with low risk of bacteremia. Indications for obtaining blood cultures are often broad and ill defined, and decision algorithms for appropriate blood cultures have not been comprehensively evaluated in critically-ill populations.MethodsWe conducted a retrospective analysis to assess the frequency of inappropriate blood cultures in the ICUs at Montefiore Medical Center based on an evidence-based guidance algorithm. Blood cultures were reviewed against this algorithm to determine their appropriateness. We calculated the prevalence of inappropriate blood culture and explored the reasons for these collected cultures.Results300 patients were randomly selected from an initial cohort of 3370 patients. 294 patients were included and of these, 167 patients had at least 1 blood culture drawn. 125 patients had one or more inappropriate blood culture. 61.4% of blood cultures drawn were assessed to be inappropriate. The most common reason for inappropriate cultures was a culture drawn as a result of isolated fever or leukocytosis.ConclusionIn a cohort of critically-ill patients, inappropriate blood cultures were common. The indications for blood cultures are often not evidence-based, and evidence-based algorithms to guide the collection of blood cultures may offer a way to decrease inappropriate culture orders.Copyright © 2023 Elsevier Inc. All rights reserved.

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