심전도 좌축편위, 우축 편위, EKG, Left Axis Deviation(LAD), Right Axis Deviation(RAD)

심전도 우축 편위
     QRS is POSITIVE (dominant R wave) in  aVF
     QRS is NEGATIVE (dominant S wave) in Lead I

심전도 좌축 편위
     QRS is POSITIVE (dominant R wave) in Lead I
     QRS is NEGATIVE (dominant S wave) in leads II, aVF

참고 문헌 : https://litfl.com/left-axis-deviation-lad-ecg-library/