Certain drugs used to treat dysrhythmias, called local anesthetics, work by blocking voltage gated sodium ion channels and slowing the entry of sodium ions into the cell during an action potential. What effects would you see?

The effect would be blockage sodium ion channels in myocardial cells, thus reducing automaticity and slowing conduction to the action potential across the myocardium and etc.

Explanation:

answer: i would say the brain but it seem that you have a brain.