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Why are P, QRS, and T waves inverted in lead aVR on an ECG?
Biology
ScanSolve AI Answer
In Lead aVR, the P wave, QRS complex, and T wave are all normally negative (inverted) deflections. This occurs because the electrical vectors for atrial depolarization (P wave), ventricular depolarization (QRS complex), and ventricular repolarization (T wave) all move away from the exploring electrode, which is located on the right arm for lead aVR. When the electrical activity moves away from an electrode, it registers as a negative deflection on the ECG.
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