Mean QRS Axis (frontal plane, hexaxial)
Mean QRS Axis (frontal plane, hexaxial) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
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What this is
Mean QRS Axis (frontal plane, hexaxial) is one of 230 deterministic tools in Sophie Well's Clinical Math & Conversions group. Mean QRS Axis (frontal plane, hexaxial) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Surawicz B, Knilans T. Chou's Electrocardiography in Clinical Practice: Adult and Pediatric. 6th ed. Saunders/Elsevier; 2008 (standard hexaxial reference for the frontal-plane QRS axis). Read the source ↗
Worked example: Mean QRS axis 36.9 deg, normal axis (-30 deg to +90 deg).
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