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.
1. used as an Italian courtesy title; can be prefixed to the name or used separately; [syn: signor, signior] The Collaborative International Dictionary of English v.0.48:Signor \Si*gnor\, Signore \Si*gnore\, n. [It.
signatory. Person who binds himself or herself, or the entity he or she is authorized to represent, by his or her signature to the terms of an agreement.y becoming a signatory on the loan, he was responsible to pay the bank $500 every month by the 31st or he would be taken to court over his failure to pay.