Stress Index Overdistension Detection Calculator

Detect lung overdistension or recruitment from pressure-time curve shape during constant-flow ventilation. Index >1.1 indicates overdistension.

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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

Detect lung overdistension or recruitment from pressure-time curve shape during constant-flow ventilation. Index >1.1 indicates overdistension

Each component has a specific meaning:

  • Pressure-time curve shape during constant-flow ventilation — The pressure-time curve shape during constant-flow ventilation recorded for the scenario being assessed.

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

How to Use

Enter the pressure-time curve shape during constant-flow ventilation for the scenario you are assessing. Detect lung overdistension or recruitment from pressure-time curve shape during constant-flow ventilation. Index >1.1 indicates overdistension. Use the stress index result to inform your calculation.

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Frequently Asked Questions