HOAG ECG Exam 2026 Practice Questions
and Answers
1. 110-250 vtach rate
2. 0.36-0.44 normal QT interval
3. 500 QT high limit
4. QT interval represents the total duration of depolarization and depolarization of phases
5. HR the higher the (), the shorter the QT interval
6. Haldol, tikosyn, three meds that increase QTI
amiodarone
7. atrial pacing spike appears just before p
8. ventricular pacing spike appears just before qrs
9. atrial and ventricular spike appears before and after p
pacing
10. dual chamber pacing atrial and ventricular pacing is aka what
11. 1st letter indicated which chamber will be paced
12. 2nd letter indicates which chamber is sensed by the pacemaking
13. 3rd letter pacemakers response to sensing the patients natural heart activity
14. AOO pacemaker mode paces in the atria 100% of the time. No sensing capability.
(post-op cardiac surgery or valvular surgery in presence of AV block)
15. AAI pacemaker mode paces the atria, sensing natural atrial activity, and inhibits
pacing if natural activity occurs. (Sinus node dysfunction with good AV func-
tion, SB, sinus arrest, SA block, afib)
1/3
and Answers
1. 110-250 vtach rate
2. 0.36-0.44 normal QT interval
3. 500 QT high limit
4. QT interval represents the total duration of depolarization and depolarization of phases
5. HR the higher the (), the shorter the QT interval
6. Haldol, tikosyn, three meds that increase QTI
amiodarone
7. atrial pacing spike appears just before p
8. ventricular pacing spike appears just before qrs
9. atrial and ventricular spike appears before and after p
pacing
10. dual chamber pacing atrial and ventricular pacing is aka what
11. 1st letter indicated which chamber will be paced
12. 2nd letter indicates which chamber is sensed by the pacemaking
13. 3rd letter pacemakers response to sensing the patients natural heart activity
14. AOO pacemaker mode paces in the atria 100% of the time. No sensing capability.
(post-op cardiac surgery or valvular surgery in presence of AV block)
15. AAI pacemaker mode paces the atria, sensing natural atrial activity, and inhibits
pacing if natural activity occurs. (Sinus node dysfunction with good AV func-
tion, SB, sinus arrest, SA block, afib)
1/3
