Passive Leg Raise Responder Prediction

Predict fluid responsiveness using the passive leg raise (PLR) maneuver by assessing cardiac output or pulse pressure increase of ≥10% when legs are raised from 45° to horizontal position.

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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 using the passive leg raise (PLR) maneuver by assessing cardiac output or pulse pressure increase of ≥10% when legs are raised from 45° to horizontal position

Each component has a specific meaning:

  • Passive leg raise maneuver by assessing cardiac output or pulse pressure increase of ≥10% when legs are raised from 45° — The passive leg raise maneuver by assessing cardiac output or pulse pressure increase of ≥10% when legs are raised from 45° recorded for the scenario being assessed.

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

How to Use

Enter the passive leg raise maneuver by assessing cardiac output or pulse pressure increase of ≥10% when legs are raised from 45° for the scenario you are assessing. Predict fluid responsiveness using the passive leg raise (PLR) maneuver by assessing cardiac output or pulse pressure increase of ≥10% when legs are raised from 45° to horizontal position. Use the plr responder result to inform your calculation.

Frequently Asked Questions