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The axis is normal (-30 % 90)
T wave
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ventricular repolarization
L Ventricular hypertrophy
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-increased thickness of heart muscle wall
-independent risk factor for sudden cardiac death
-L axis deviation
-causes: HTN, cardiomyopathy, aortic and mitral valve disease
An infarct means?
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cardiac tissue death
SA node
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-pacemaker of the heart
-60-100 bpm
QT interval length range
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</= 0.44 seconds