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Updated: Jul 18, 2026

A Novel Approach for the Administration of Medications and Fluids in Emergency Scenarios and Settings
Published on: November 9, 2016
Can passive leg raising be used to guide fluid administration?
1Department of Intensive Care, Erasme University Hospital, Route de Lennik 808, B-1070 Brussels, Belgium. ddebacke@ulb.ac.be
Predicting fluid responsiveness is crucial. The passive leg raising (PLR) test offers a reliable method to assess fluid responsiveness by temporarily increasing preload, aiding clinical decisions.
Area of Science:
- Critical care medicine
- Hemodynamics
- Fluid management
Background:
- Predicting fluid responsiveness is challenging with traditional methods like pressure and volume measurements.
- Dynamic indices based on stroke volume variations are limited by arrhythmias and spontaneous breathing.
- The passive leg raising (PLR) test is a promising alternative for assessing fluid responsiveness.
Discussion:
- The PLR test simulates fluid loading by increasing preload through leg-vein blood autotransfusion.
- This maneuver can transiently augment cardiac output in fluid-responsive patients.
- Technical considerations for performing and interpreting the PLR test are essential for accuracy.
Key Insights:
- The PLR test provides a dynamic and non-invasive method to predict fluid responsiveness.
- It is particularly useful when other dynamic indices are unreliable.
- Understanding the physiological basis of PLR is key to its effective application.
Outlook:
- Further standardization of the PLR test protocol is needed.
- Integration of PLR with other hemodynamic monitoring could enhance its utility.
- Wider adoption of PLR may improve fluid management strategies in critical care.
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