RV-PA Uncoupling Ees/Ea Ratio Calculator

Assess RV-pulmonary arterial coupling using Ees/Ea elastance ratio. Ratio < 0.8 indicates uncoupling and poor prognosis.

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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

Assess RV-pulmonary arterial coupling using Ees/Ea elastance ratio. Ratio < 0.8 indicates uncoupling and poor prognosis

Each component has a specific meaning:

  • Ees/Ea elastance ratio — The ees/ea elastance ratio recorded for the scenario being assessed.

Note: Interpret the rv-pa coupling result against the thresholds and context described above.

How to Use

Enter the Ees/Ea elastance ratio for the scenario you are assessing. Assess RV-pulmonary arterial coupling using Ees/Ea elastance ratio. Ratio < 0.8 indicates uncoupling and poor prognosis. Use the rv-pa coupling result to inform your calculation.

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Frequently Asked Questions