Hey guys had a quick concept that i got stuck on. Kaplan notes say that hypercalcemia shortens the QT segment. And then they go on to say that QT segment corresponds to the plateau phase of the action potential. I was confused as to how this would happen. I was thinking that since in the plateau phase the calcium channels are open and calcium moves into the cell. So in hypercalcemia more calcium would move in hence prolonging the QT segment rather than shortening it. I looked at it from this angle but maybe there is a different way to look at it. Would appreciate the help. thanks.
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This means that a sign is a relation between the sign vehicle (the specific physical form of the sign), a sign object (the aspect of the world that the sign carries meaning about) and an interpretant (the meaning of the sign as understood by an interpreter).