Passive Leg Raise Fluid Responsiveness Calculator

Predict fluid responsiveness from passive leg raise CO increase. >10% increase in pulse pressure or cardiac output predicts responder.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Predict fluid responsiveness from passive leg raise CO increase. >10% increase in pulse pressure or cardiac output predicts responder

Each component has a specific meaning:

  • Passive leg raise CO increase — The passive leg raise co increase recorded for the scenario being assessed.

Note: Interpret the plr response result against the thresholds and context described above.

How to Use

Enter the passive leg raise CO increase for the scenario you are assessing. Predict fluid responsiveness from passive leg raise CO increase. >10% increase in pulse pressure or cardiac output predicts responder. Use the plr response result to inform your calculation.

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Frequently Asked Questions