Stroke Volume Variation (SVV)

Calculate stroke volume variation (SVV) over the respiratory cycle to assess preload dependence and fluid responsiveness. SVV >13% indicates likely benefit from fluid administration.

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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

Calculate stroke volume variation (SVV) over the respiratory cycle to assess preload dependence and fluid responsiveness. SVV >13% indicates likely benefit from fluid administration

Each component has a specific meaning:

  • Fluid administration — The fluid administration recorded for the scenario being assessed.

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

How to Use

Enter the fluid administration for the scenario you are assessing. Calculate stroke volume variation (SVV) over the respiratory cycle to assess preload dependence and fluid responsiveness. SVV >13% indicates likely benefit from fluid administration. Use the svv result to inform your calculation.

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Frequently Asked Questions