Nov 17, 2024 · Normal Axis = QRS axis between -30° and +90°. Abnormal axis deviation, indicating underlying pathology, is demonstrated by: Left Axis Deviation = QRS axis less than -30°. Right Axis …

Jan 8, 2024 · Identify the key components of electrical axis deviation on an electrocardiogram. Differentiate between right-axis deviation and left-axis deviation based on electrocardiogram …

Jul 25, 2025 · In adults, the normal QRS axis is between +30° and +90°, while abnormal axis deviations include left-axis deviation (<+30°), right-axis deviation (>+90°), an...

Jul 28, 2025 · Right Axis Deviation (RAD) means the axis points right, usually between +90 and +180 degrees. Extreme axis deviation, sometimes called “Northwest Axis,” indicates electrical activity …

Explore limb ECG leads, electrical axis determination, positive/negative deflections, and cardiac axis variations like left, right, and extreme deviations.

In the diagram below the normal range is identified (-30° to +90°). Left axis deviation (i.e., superior and leftward) is defined from -30° to -90°, and right axis deviation (i.e., inferior and rightward) is defined …

As evident from the figure, the normal heart axis is between –30° and 90°. If the axis is more positive than 90° it is referred to as right axis deviation.

Mar 6, 2011 · In healthy individuals, you would expect the cardiac axis to lie between -30° (aVL) and +90º (aVF). In the context of normal cardiac axis, the net direction of electrical activity spreads …

Normal Axis -30°→90° Dominant QRS direction (positive or negative) can be used to approximate axis Normal axis if positive QRS in leads I and aVF Right Axis Deviation Causes: Usually accompanied …

Mar 17, 2025 · Between -30º and 90º: normal heart axis. Between -30º and -90º: left-axis deviation. Between 90º and 180º: right-axis deviation. Between -90º and -180º: extreme axis deviation. Related …