IBHRE CEPS STUDY GUIDE 2026 FULL
CONTENT QUESTIONS AND ANSWERS
COMPLETE SET
◉ Hypokalemia EKG changes
Answer: -ST depression
-T inversion
-U wave
◉ Hyperkalemia EKG
Answer: 1. Peak T waves
2. Wide QRS
3. Loss of P waves
4. PR prolongation
◉ SQTS treatment
Answer: -ICD is class I indication for those who have experienced
SCA due to short QT
-Quinidine (IA) can be used to correct back to normal QT
-Class III is not good as it increases QT beyond normal levels
, ◉ Drugs contraindicated for SQTS
Answer: -Class IB (shortens QT even more)
◉ Class IB drug use
Answer: VENTRICULAR ONLY
◉ Automatic pacemakers of the heart rates
Answer: OTHER THAN SA NODE:
-atrial: 60
-AV junction: 50
-Ventricular: 30-40
◉ AP phase that correlates to Ventricular Diastole
Answer: Phase 4 (resting membrane potential)
◉ Main repolarizing phase and what does it correspond to on EKG
Answer: -phase 3
-T wave
◉ Resting membrane potential of nodal cells
Answer: -60 mV
CONTENT QUESTIONS AND ANSWERS
COMPLETE SET
◉ Hypokalemia EKG changes
Answer: -ST depression
-T inversion
-U wave
◉ Hyperkalemia EKG
Answer: 1. Peak T waves
2. Wide QRS
3. Loss of P waves
4. PR prolongation
◉ SQTS treatment
Answer: -ICD is class I indication for those who have experienced
SCA due to short QT
-Quinidine (IA) can be used to correct back to normal QT
-Class III is not good as it increases QT beyond normal levels
, ◉ Drugs contraindicated for SQTS
Answer: -Class IB (shortens QT even more)
◉ Class IB drug use
Answer: VENTRICULAR ONLY
◉ Automatic pacemakers of the heart rates
Answer: OTHER THAN SA NODE:
-atrial: 60
-AV junction: 50
-Ventricular: 30-40
◉ AP phase that correlates to Ventricular Diastole
Answer: Phase 4 (resting membrane potential)
◉ Main repolarizing phase and what does it correspond to on EKG
Answer: -phase 3
-T wave
◉ Resting membrane potential of nodal cells
Answer: -60 mV
