BAYCARE EKG 2025/2026 QUESTIONS AND ANSWERS
GRADED A++
✔✔Which of these statements about how sinus arrhythmia differs from wandering atrial
pacemaker is true?
Select one:
a. Sinus arrhythmia has uniform P wave shapes; wandering atrial pacemaker has at
least three different shaped P waves.
b. Sinus arrhythmia has a regular rhythm; wandering atrial pacemaker is irregular.
c. Sinus arrhythmia has a heart rate of less than 100; wandering atrial pacemaker has
a rate greater than 100.
d. Sinus arrhythmia is lethal; wandering atrial pacemaker is benign. - ✔✔Sinus
arrhythmia has uniform P wave shapes; wandering atrial pacemaker has at least three
different shaped P waves..
✔✔The rhythm most often associated with chronic lung disease is
Select one:
a. Atrial fibrillation.
b. SVT.
c. Sinus arrhythmia.
d. Multifocal atrial tachycardia. - ✔✔Multifocal atrial tachycardia.
✔✔Atrial fibrillation is
Select one:
a. Regular.
b. Irregular.
c. Regular but interrupted by premature beats.
d. Regular but interrupted by pauses. - ✔✔Irregular.
✔✔Which statement is true regarding P waves in atrial flutter?
Select one:
a. There are no P waves—they're called flutter waves.
b. The P waves are all tall and pointy.
c. P waves change shape constantly.
d. P waves have an atrial rate of about 100. - ✔✔. There are no P waves—they're
called flutter waves.
✔✔A regular rhythm with narrow QRS complexes, indistinguishable P waves, and a
heart rate of 155 would be consistent with
Select one:
a. Atrial fibrillation.
b. Supraventricular tachycardia.
c. Sinus bradycardia.
d. Ventricular tachycardia. - ✔✔Supraventricular tachycardia.
, ✔✔Which junctional rhythm has the same heart rate as sinus rhythm?
Select one:
a. Junctional bradycardia
b. Junctional rhythm
c. Accelerated junctional rhythm
d. Junctional tachycardia - ✔✔Accelerated junctional rhythm
✔✔Which junctional rhythm WOULD NOT be treated with atropine?
Select one:
a. Junctional bradycardia
b. Juctional rhythm
c. Accelerated junctional rhythm
d. Junctional tachycardia - ✔✔Junctional tachycardia
✔✔In high junctional rhythms, the P wave is
Select one:
a. Upright, rounded, preceding the QRS.
b. Inverted following the QRS.
c. Inverted preceding the QRS.
d. Hidden inside the QRS. - ✔✔c. Inverted preceding the QRS.
✔✔In low junctional rhythms, the P wave is
Select one:
a. Upright, rounded, preceding the QRS.
b. Inverted following the QRS.
c. Inverted preceding the QRS.
d. Hidden inside the QRS. - ✔✔b. Inverted following the QRS.
✔✔PJCs are a result of
Select one:
a. Escape.
b. Usurpation.
c. Sinus node failure.
d. Atrial failure. - ✔✔b. Usurpation.
✔✔Junctional tachycardia has a heart rate of
Select one:
a. 40-60.
b. 60-100.
c. Less than 40.
d. Greater than 100. - ✔✔. Greater than 100.
✔✔In which rhythm is decreased cardiac output most likely to be a concern?
Select one:
GRADED A++
✔✔Which of these statements about how sinus arrhythmia differs from wandering atrial
pacemaker is true?
Select one:
a. Sinus arrhythmia has uniform P wave shapes; wandering atrial pacemaker has at
least three different shaped P waves.
b. Sinus arrhythmia has a regular rhythm; wandering atrial pacemaker is irregular.
c. Sinus arrhythmia has a heart rate of less than 100; wandering atrial pacemaker has
a rate greater than 100.
d. Sinus arrhythmia is lethal; wandering atrial pacemaker is benign. - ✔✔Sinus
arrhythmia has uniform P wave shapes; wandering atrial pacemaker has at least three
different shaped P waves..
✔✔The rhythm most often associated with chronic lung disease is
Select one:
a. Atrial fibrillation.
b. SVT.
c. Sinus arrhythmia.
d. Multifocal atrial tachycardia. - ✔✔Multifocal atrial tachycardia.
✔✔Atrial fibrillation is
Select one:
a. Regular.
b. Irregular.
c. Regular but interrupted by premature beats.
d. Regular but interrupted by pauses. - ✔✔Irregular.
✔✔Which statement is true regarding P waves in atrial flutter?
Select one:
a. There are no P waves—they're called flutter waves.
b. The P waves are all tall and pointy.
c. P waves change shape constantly.
d. P waves have an atrial rate of about 100. - ✔✔. There are no P waves—they're
called flutter waves.
✔✔A regular rhythm with narrow QRS complexes, indistinguishable P waves, and a
heart rate of 155 would be consistent with
Select one:
a. Atrial fibrillation.
b. Supraventricular tachycardia.
c. Sinus bradycardia.
d. Ventricular tachycardia. - ✔✔Supraventricular tachycardia.
, ✔✔Which junctional rhythm has the same heart rate as sinus rhythm?
Select one:
a. Junctional bradycardia
b. Junctional rhythm
c. Accelerated junctional rhythm
d. Junctional tachycardia - ✔✔Accelerated junctional rhythm
✔✔Which junctional rhythm WOULD NOT be treated with atropine?
Select one:
a. Junctional bradycardia
b. Juctional rhythm
c. Accelerated junctional rhythm
d. Junctional tachycardia - ✔✔Junctional tachycardia
✔✔In high junctional rhythms, the P wave is
Select one:
a. Upright, rounded, preceding the QRS.
b. Inverted following the QRS.
c. Inverted preceding the QRS.
d. Hidden inside the QRS. - ✔✔c. Inverted preceding the QRS.
✔✔In low junctional rhythms, the P wave is
Select one:
a. Upright, rounded, preceding the QRS.
b. Inverted following the QRS.
c. Inverted preceding the QRS.
d. Hidden inside the QRS. - ✔✔b. Inverted following the QRS.
✔✔PJCs are a result of
Select one:
a. Escape.
b. Usurpation.
c. Sinus node failure.
d. Atrial failure. - ✔✔b. Usurpation.
✔✔Junctional tachycardia has a heart rate of
Select one:
a. 40-60.
b. 60-100.
c. Less than 40.
d. Greater than 100. - ✔✔. Greater than 100.
✔✔In which rhythm is decreased cardiac output most likely to be a concern?
Select one:
