Question 1
An upward deflection of the QRS complex is called a(n)
◦ P wave.
◦ R wave.
◦ Q wave.
◦ T wave.
Question 2
Which of these statements about the sinus node is FALSE?
◦ It is the slowest pacemaker of the heart.
◦ It has the fastest inherent rate of all the possible pacemaker sites.
◦ It is the normal pacemaker of the heart.
◦ It fires at an inherent rate of 60—100 beats per minute.