Blood cultures: key elements for best practices and future directions

Area of Science:

• Clinical Microbiology
• Infectious Diseases
• Diagnostic Laboratory Science

Background:

• Bloodstream infections (BSI) are a major cause of illness and death globally.
• Blood cultures (BCs) are the primary diagnostic tool for bacteremia and fungemia.
• Advances in technology have led to new methods for diagnosing bloodstream infections.

Purpose of the Study:

• To provide a comprehensive review of optimal blood culture practices.
• To discuss both traditional and emerging diagnostic technologies for BSI.
• To highlight the importance of communication between laboratories and clinicians.

Main Methods:

• Review of established and novel techniques for blood culture collection and processing.
• Analysis of molecular assays for the diagnosis of bacteremia and fungemia.
• Discussion of guidelines for sterile collection, processing, and reporting.

Main Results:

• Significant improvements in blood culture technology have been made.
• New molecular assays offer advanced diagnostic capabilities.
• Standardized guidelines are crucial for accurate results.

Conclusions:

• Optimal blood culture practices are essential for effective BSI diagnosis.
• Understanding factors like incubation duration and contaminant workup improves diagnostic accuracy.
• Enhanced communication between laboratory staff and clinicians is vital for patient care.