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QRS Axis Calculator
Quickly determine the heart's electrical axis from ECG limb lead data with our free online calculator, ideal for healthcare professionals and students.
Check It Yourself
About This Tool
The QRS Axis Calculator is an essential tool for healthcare professionals to analyze the electrical orientation of the heart based on ECG limb leads. By inputting positive or negative QRS wave amplitudes from leads I, II, III, aVR, aVL, and aVF, the tool computes the heart's electrical axis using vector analysis algorithms.
Its user-friendly interface allows quick data entry, and the built-in calculation engine ensures accurate results, categorizing the axis as normal, left deviation, or right deviation. A visual polar plot displays the axis as a vector within a simplified heart diagram, providing immediate visual insight into your ECG data.
This tool is valuable for diagnosing axis deviations associated with various cardiac conditions, including hypertrophy, infarction, and conduction abnormalities. Designed for cardiologists, medical students, and technicians, it helps enhance ECG interpretation efficiency and accuracy.
Additional features include result exporting, calculation history, and responsiveness for use on desktops and tablets, making it adaptable for clinical or educational environments.
How to Use
1. Enter limb lead amplitudes in the input fields.
2. Verify the values for correctness.
3. Click the 'Calculate' button.
4. View the calculated axis degrees, category, and polar plot.
5. Optionally, copy or export your results, or reset inputs for new data.
FAQs/Additional Resources
Find Quick Answers
What is the heart's QRS axis?
How do I interpret the axis value?
Which ECG leads are used for this calculation?
Can this tool be used for all ECGs?
Is medical training required to use this calculator?
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John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
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