Class 3, Phase 3 Flashcards
1
Q
What are the 3 drug names?
A
“SAD”
Sotalol
Amiodarone
Dofelitide
2
Q
What is phase 3 of the action potential of the cardiac muscle cell and how do these drugs block it?
A
Phase 3: Potassium ions move out of cells - repolarization
These drugs block potassium channels and slow outward movement of potassium during phase 3 of the action potential.
3
Q
What is classification 3?
A
Block potassium channels
