Question 1
Your patient has his own P waves but no QRS complexes. His DDD pacemaker should
◦ provide him with QRS complexes at a preset rate, ignoring intrinsic P waves.
◦ sense the intrinsic P waves and deliver QRS complexes to follow those P waves within a preset rate range.
◦ be inhibited and wait until there are no P waves or QRS complexes.
◦ ignore the intrinsic P waves, providing him with paced P waves and QRS complexes.
Question 2
The most common pacemaker malfunctions include ALL BUT which of the following?
◦ Failure to fire
◦ Failure to repolarize
◦ Failure to sense
◦ Failure to capture