What is a normal P axis on an ECG?
The P wave represents atrial depolarisation and is the first positive deflection on the ECG. The normal P wave axis ranges from 0° to +75°. However, the link between P wave abnormalities and cardiovascular death has previously been established.
It can be normal, skewed to the left (left axis deviation, or LAD), skewed to the right (right axis deviation, or RAD), or indeterminate (northwest axis). The most important axis to determine is the QRS axis. The P wave or T wave axis, on the other hand, can be measured. Normally, the QRS axis should be between -30 and +90 degrees.
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