indeterminate axis

Results:
ECG STAT July 15, 2025
Indeterminate Axis DDx

Key Points An indeterminate axis, sometimes referred to as an “extreme” or “undetermined” axis, is suspected when the QRS complexes are isoelectric or nearly biphasic in both Lead I and…

ECG STAT July 15, 2025
Indeterminate QRS Axis Basics

Key Points Definition: An indeterminate QRS axis (also called “no man’s land”) occurs when the frontal QRS vector lies between –90° and ±180°, but no dominant direction is evident. ECG…

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