When myocardial cell are exposed to hyperkaliemia, the maximum diastolic potential is depolarized as a result of the alteration of Ik1 potassium current, whose intensity and direction is strictly dependent on intracellular and extracellular potassium concentrations.
2.
I have read a certain writing on a disease / disorder called hyperkaliemia and I understand that it is composed of hyper-, kalium ( potassium ) and ( a ) emia ( referring to blood ).