Reducing Unnecessary Laboratory Utilization in the Medical ICU: A Fellow-Driven Quality Improvement Initiative

Area of Science:

• Quality Improvement
• Healthcare Management
• Medical Laboratory Science

Background:

• Laboratory test overutilization is a recognized problem, leading to patient harm and increased healthcare costs.
• The Choosing Wisely campaign advises against routine testing without clear clinical questions.
• The institution was identified as an extreme outlier in laboratory utilization (100th percentile).

Purpose of the Study:

• To implement a quality improvement project to reduce laboratory utilization in medical intensive care units (ICUs).
• To address excessive laboratory testing and its associated waste and potential harm.

Main Methods:

• A quality improvement project utilizing the Plan-Do-Study-Act (PDSA) framework was implemented.
• Interventions were developed and applied by a multidisciplinary team, led by trainee physicians, to address identified root causes.
• Key performance indicators included laboratory utilization rates and counterbalance metrics (mortality, renal replacement therapy, stat orders, infections).

Main Results:

• A sustained 20% reduction in laboratory tests per patient day was achieved.
• No significant changes were observed in the monitored counterbalance metrics, indicating patient safety was maintained.
• The project demonstrated the feasibility of reducing laboratory utilization without adverse clinical effects.

Conclusions:

• Trainee physicians can lead successful initiatives to improve institutional culture and processes.
• Safe and significant reductions in laboratory utilization are achievable through targeted quality improvement efforts.
• This study highlights the potential for trainees to drive positive change in healthcare resource management.