Question 1
Contractility is the ability of a cardiac cell to
◦ respond to a stimulus by depolarizing.
◦ initiate an impulse without outside stimulus.
◦ pass an impulse along to neighboring cells.
◦ contract.
Question 2
What is TRUE about the following intervals: PR 0.14, QRS 0.08?
◦ The QRS interval is prolonged.
◦ Intervals are normal.
◦ PR interval is prolonged.
◦ PR interval is shortened.