Which Information by the Nurse Indicates a Good Understanding of Depolarization

Multiple Choice

Which information by the nurse indicates a good understanding of depolarization? Depolarization of a cardiac muscle cell occurs as the result of:

A) A decrease in the permeability of the cell membrane to ions
B) The rapid movement of ions across the cell membrane
C) A blockade by calcium ions
D) Stimuli instigated during the refractory period