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Evaluation of hospital blood culture utilization rates to identify opportunities for diagnostic stewardship.

Publication ,  Journal Article
Warren, BG; Yarrington, ME; Polage, CR; Anderson, DJ; Moehring, RW
Published in: Infect Control Hosp Epidemiol
February 2023

OBJECTIVES: To evaluate the pattern of blood-culture utilization among a cohort of 6 hospitals to identify potential opportunities for diagnostic stewardship. METHODS: We completed a retrospective analysis of blood-culture utilization during adult inpatient or emergency department (ED) encounters in 6 hospitals from May 2019 to April 2020. We investigated 2 measures of blood-culture utilization rates (BCURs): the total number of blood cultures, defined as a unique accession number per 1,000 patient days (BCX) and a new metric of blood-culture events per 1,000 patient days to account for paired culture practices. We defined a blood-culture event as an initial blood culture and all subsequent samples for culture drawn within 12 hours for patients with an inpatient or ED encounter. Cultures were evaluated by unit type, positivity and contamination rates, and other markers evaluating the quality of blood-culture collection. RESULTS: In total, 111,520 blood cultures, 52,550 blood culture events, 165,456 inpatient admissions, and 568,928 patient days were analyzed. Overall, the mean BCUR was 196 blood cultures per 1,000 patient days, with 92 blood culture events per 1,000 patient days (range, 64-155 among hospitals). Furthermore, 7% of blood-culture events were single culture events, 55% began in the ED, and 77% occurred in the first 3 hospital days. Among all blood cultures, 7.7% grew a likely pathogen, 2.1% were contaminated, and 5.9% of first blood cultures were collected after the initiation of antibiotics. CONCLUSIONS: Blood-culture utilization varied by hospital and was heavily influenced by ED culture volumes. Hospital comparisons of blood-culture metrics can assist in identifying opportunities to optimize blood-culture collection practices.

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Published In

Infect Control Hosp Epidemiol

DOI

EISSN

1559-6834

Publication Date

February 2023

Volume

44

Issue

2

Start / End Page

200 / 205

Location

United States

Related Subject Headings

  • Retrospective Studies
  • Humans
  • Hospitals
  • Hospitalization
  • Epidemiology
  • Emergency Service, Hospital
  • Blood Culture
  • Adult
  • 42 Health sciences
  • 32 Biomedical and clinical sciences
 

Citation

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ICMJE
MLA
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Warren, B. G., Yarrington, M. E., Polage, C. R., Anderson, D. J., & Moehring, R. W. (2023). Evaluation of hospital blood culture utilization rates to identify opportunities for diagnostic stewardship. Infect Control Hosp Epidemiol, 44(2), 200–205. https://doi.org/10.1017/ice.2022.191
Warren, Bobby G., Michael E. Yarrington, Christopher R. Polage, Deverick J. Anderson, and Rebekah W. Moehring. “Evaluation of hospital blood culture utilization rates to identify opportunities for diagnostic stewardship.Infect Control Hosp Epidemiol 44, no. 2 (February 2023): 200–205. https://doi.org/10.1017/ice.2022.191.
Warren BG, Yarrington ME, Polage CR, Anderson DJ, Moehring RW. Evaluation of hospital blood culture utilization rates to identify opportunities for diagnostic stewardship. Infect Control Hosp Epidemiol. 2023 Feb;44(2):200–5.
Warren, Bobby G., et al. “Evaluation of hospital blood culture utilization rates to identify opportunities for diagnostic stewardship.Infect Control Hosp Epidemiol, vol. 44, no. 2, Feb. 2023, pp. 200–05. Pubmed, doi:10.1017/ice.2022.191.
Warren BG, Yarrington ME, Polage CR, Anderson DJ, Moehring RW. Evaluation of hospital blood culture utilization rates to identify opportunities for diagnostic stewardship. Infect Control Hosp Epidemiol. 2023 Feb;44(2):200–205.
Journal cover image

Published In

Infect Control Hosp Epidemiol

DOI

EISSN

1559-6834

Publication Date

February 2023

Volume

44

Issue

2

Start / End Page

200 / 205

Location

United States

Related Subject Headings

  • Retrospective Studies
  • Humans
  • Hospitals
  • Hospitalization
  • Epidemiology
  • Emergency Service, Hospital
  • Blood Culture
  • Adult
  • 42 Health sciences
  • 32 Biomedical and clinical sciences