A Quality Improvement Initiative: Reducing Blood Culture Contamination in a Children's Hospital

Area of Science:

• Pediatric healthcare quality improvement
• Clinical microbiology and diagnostics
• Patient safety in hospitals

Background:

• Blood culture contamination poses significant safety and quality risks in pediatric hospitals.
• High contamination rates lead to increased testing, antibiotic use, and healthcare costs.
• The benchmark for acceptable blood culture contamination is below 3%.

Purpose of the Study:

• To decrease blood culture contamination rates in a children's hospital.
• To reduce the contamination rate from a baseline of 2.85% to below 1.5% within two years.
• To establish best practices for pediatric blood culture collection.

Main Methods:

• Implemented a multidisciplinary quality improvement team.
• Conducted process mapping, cause-and-effect analysis, and nurse surveys.
• Standardized blood culture collection protocols, enhanced nurse education, and optimized blood volume based on patient weight.

Main Results:

• Achieved a significant reduction in average blood culture contamination rate from 2.85% to 1.54%.
• This reduction was sustained despite an increase in the total number of blood cultures collected.
• Resulted in estimated monthly savings of $49,998 for the hospital.

Conclusions:

• Standardized collection methods, optimized blood volume, and reinforced education are key to reducing pediatric blood culture contamination.
• A best practice for pediatric blood culture collection was developed and implemented.
• The project successfully achieved a sustainable low rate of blood culture contamination.