CEN Exam Study Guide: Certified Emergency Nurse Review, Practice Questions & Complete
Certification Prep
Mean arterial pressure (MAP) is equal to - ✔✔[(2x DBP) + SBP] divided by 3. (Hypertensive
Crisis Scenario)
2. Preload is volume measured by - ✔✔CVP (right atrial pressure), Afterload is pressure
measured by SVR (systemic vascular resistance).
Afterload is low - ✔✔only in distributive shock.
Volume increases - ✔✔preload, diuretics (Lasix) decrease preload.
NTG and Nipride - ✔✔decrease afterload.
Vasopressors - ✔✔increase afterload.
3. Vasopressor extravasation - - ✔✔Phentolamine (Regitine).
5. Treatment of Ventricular Tachycardia - - ✔✔If pulse, but unstable - synchronize
cardioversion on R wave (Peds wattage 05-1 j/kg). If stable - Adenosine for monomorphic, then
choice of Amiodarone, Sotalol, or Procainamide. If pulseless VT- BLS and defibrillation at 120-
200 joules (Peds start at 2-4 j/kg).
6. Cardiac arrest - - ✔✔Get ETCO2 > 10 in quality BLS. Point of care ultrasound (POCUS) to
assess H & T's
Certification Prep
Mean arterial pressure (MAP) is equal to - ✔✔[(2x DBP) + SBP] divided by 3. (Hypertensive
Crisis Scenario)
2. Preload is volume measured by - ✔✔CVP (right atrial pressure), Afterload is pressure
measured by SVR (systemic vascular resistance).
Afterload is low - ✔✔only in distributive shock.
Volume increases - ✔✔preload, diuretics (Lasix) decrease preload.
NTG and Nipride - ✔✔decrease afterload.
Vasopressors - ✔✔increase afterload.
3. Vasopressor extravasation - - ✔✔Phentolamine (Regitine).
5. Treatment of Ventricular Tachycardia - - ✔✔If pulse, but unstable - synchronize
cardioversion on R wave (Peds wattage 05-1 j/kg). If stable - Adenosine for monomorphic, then
choice of Amiodarone, Sotalol, or Procainamide. If pulseless VT- BLS and defibrillation at 120-
200 joules (Peds start at 2-4 j/kg).
6. Cardiac arrest - - ✔✔Get ETCO2 > 10 in quality BLS. Point of care ultrasound (POCUS) to
assess H & T's
