- Joined
- Aug 24, 2010
- Messages
- 108
- Reaction score
- 0
I'm looking at augmented limb leads (studying for a medical school exam, this is my advanced notice that this is not premed homework help), and my textbook asks me instead of telling me why the QRS in aVR is inverted.
I know that in aVR the positive terminal is connected to the right arm... and the negative terminal is a connection (sum?) of the left foot and left arm? So perhaps because the base of the heart (the more negative portion) is closer to the right arm, and an area in between the left arm and left leg is more towards the apex of the heart (the more positive portion), the negative portion has the positive terminal and the positive portion has the negative terminal, and that is what produces the inversion? Amidoinitrite? If I seem confused or am using incorrect terminology for anything, any explanations are appreciated
I know that in aVR the positive terminal is connected to the right arm... and the negative terminal is a connection (sum?) of the left foot and left arm? So perhaps because the base of the heart (the more negative portion) is closer to the right arm, and an area in between the left arm and left leg is more towards the apex of the heart (the more positive portion), the negative portion has the positive terminal and the positive portion has the negative terminal, and that is what produces the inversion? Amidoinitrite? If I seem confused or am using incorrect terminology for anything, any explanations are appreciated