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Stroke Index (Cardiac Function) Calculator

Calculate stroke index cardiac function from stroke volume, body surface area, weight, and height.

Stroke Index (Cardiac Function) Calculator

Calculate stroke index cardiac function from stroke volume, body surface area, weight, and height.

Input your stroke index data

Formula

Stroke index = stroke volume (mL/beat) / body surface area (m²).

Body surface area (Du Bois) = 0.007184 × weight^0.425 × height^0.725.

Normal ranges: 30-65 mL/beat/m². Values below 30 may indicate reduced cardiac function. Values above 65 may indicate excellent cardiac function.

Stroke index accounts for body size differences and provides a standardized measure of cardiac function. It is affected by stroke volume, body size, cardiovascular fitness, and cardiac health.

Steps

  • Enter stroke volume (mL/beat) from cardiac assessment.
  • Enter weight (kg) for body surface area calculation.
  • Enter height (cm) for body surface area calculation.
  • Optionally enter body surface area if calculated (m²).
  • Review stroke index, cardiac function status, and recommendations.

Additional calculations

Enter your stroke index data to see additional insights.

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Complete guide snapshot

Stroke index is stroke volume normalized to body surface area, providing a standardized measure of cardiac function. Normal range: 30-65 mL/beat/m². It accounts for body size differences and reflects cardiac efficiency.

Use this calculator to assess stroke index from stroke volume, body surface area (calculated from weight and height), and optional measured BSA.

FAQs

What is stroke index?

Stroke index is stroke volume normalized to body surface area (BSA). It accounts for body size differences and provides a standardized measure of cardiac function. Normal range: 30-65 mL/beat/m².

How is stroke index calculated?

Stroke index = stroke volume (mL/beat) / body surface area (m²). BSA can be calculated using formulas like Du Bois: BSA = 0.007184 × weight^0.425 × height^0.725.

What are normal stroke index values?

Normal stroke index: 30-65 mL/beat/m². Values below 30 may indicate reduced cardiac function, while values above 65 may indicate excellent cardiac function or specific conditions.

What affects stroke index?

Stroke index is affected by stroke volume, body size, cardiovascular fitness, age, heart function, preload, afterload, contractility, and other factors affecting cardiac performance.

What does high stroke index mean?

High stroke index indicates good cardiac function with efficient stroke volume relative to body size. This is associated with better cardiovascular fitness and cardiac efficiency.

What does low stroke index mean?

Low stroke index may indicate reduced cardiac function, decreased stroke volume, or cardiac limitations. This can improve with cardiovascular training and appropriate medical management.

How does exercise affect stroke index?

Stroke index increases during exercise due to increased stroke volume. Trained individuals typically have higher stroke index values, reflecting better cardiovascular fitness and cardiac function.

Does age affect stroke index?

Yes. Stroke index may decrease with age due to reduced stroke volume, decreased cardiovascular function, and age-related changes in heart function. Regular exercise can help maintain stroke index.

Can I measure stroke index at home?

Home measurement is limited. Stroke index requires stroke volume and body surface area measurements, typically done in clinical settings using echocardiography or other cardiac assessments.

When should I consult a healthcare provider?

Consult a healthcare provider if stroke index is significantly low, if you have cardiovascular symptoms, or if you have concerns about cardiac function or cardiovascular health.

Summary

This tool calculates stroke index cardiac function from stroke volume, body surface area (optional), weight, and height.

Outputs include stroke volume, body surface area, stroke index, function index, status, recommendations, an action plan, and supporting metrics.

Formula, steps, guide content, related tools, and FAQs ensure humans or AI assistants can interpret the methodology instantly.

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Stroke Index (Cardiac Function) Calculator

Calculate stroke index cardiac function from stroke volume, body surface area, weight, and height.

How to use Stroke Index (Cardiac Function) Calculator

Step-by-step guide to using the Stroke Index (Cardiac Function) Calculator:

  1. Enter your values. Input the required values in the calculator form
  2. Calculate. The calculator will automatically compute and display your results
  3. Review results. Review the calculated results and any additional information provided

Frequently asked questions

How do I use the Stroke Index (Cardiac Function) Calculator?

Simply enter your values in the input fields and the calculator will automatically compute the results. The Stroke Index (Cardiac Function) Calculator is designed to be user-friendly and provide instant calculations.

Is the Stroke Index (Cardiac Function) Calculator free to use?

Yes, the Stroke Index (Cardiac Function) Calculator is completely free to use. No registration or payment is required.

Can I use this calculator on mobile devices?

Yes, the Stroke Index (Cardiac Function) Calculator is fully responsive and works perfectly on mobile phones, tablets, and desktop computers.

Are the results from Stroke Index (Cardiac Function) Calculator accurate?

Yes, our calculators use standard formulas and are regularly tested for accuracy. However, results should be used for informational purposes and not as a substitute for professional advice.