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Does computerised provider order entry reduce test turnaround times? A before-and-after study at four hospitals
Johanna I Westbrook1, Andrew Georgiou, Mary Lam
1Health Informatics Research & Evaluation Unit, Faculty of Health Sciences, The University of Sydney, Lidcombe 1825, NSW, Australia. J.Westbrook@usyd.edu.au
Studies in Health Technology and Informatics
|September 12, 2009
Summary
Computerised provider order entry (CPOE) systems significantly reduce test turnaround time (TAT), a key factor impacting hospital length of stay. This study confirms CPOE
Area of Science:
- Health Informatics
- Health Services Research
- Hospital Administration
Background:
- Limited multi-centre studies evaluate computerised provider order entry (CPOE) systems' impact on healthcare efficiency.
- Demonstrating a direct link between CPOE system use and improved patient outcomes remains challenging.
- Characterizing pre-CPOE problems is crucial for targeted system implementation.
Purpose of the Study:
- To investigate the relationship between test turnaround time (TAT) and length of stay for emergency department patients before CPOE implementation.
- To measure the impact of CPOE on TAT across four Australian hospitals.
- To assess the consistency of CPOE's effect on TAT.
Main Methods:
- A two-staged project was conducted.
- Stage one: Investigated the link between TAT and length of stay in emergency departments pre-CPOE.
- Stage two: Measured CPOE's impact on TAT in four Australian hospitals.
Main Results:
- Test turnaround time (TAT) was identified as a significant contributor to patient length of stay.
- All four hospitals demonstrated a significant reduction in TAT after CPOE implementation.
- Evidence supports TAT's direct relationship with length of stay.
Conclusions:
- Computerised provider order entry (CPOE) systems are effective in reducing test turnaround time (TAT).
- The findings support the hypothesis that CPOE implementation can positively influence patient outcomes.
- Reducing TAT through CPOE may lead to improved overall healthcare efficiency.
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