EP IBHRE FINAL STUDY GUIDE 2026
COMPLETE QUESTIONS AND ANSWERS.
⩥ corvert (ibutilide and fumarate) - EP use. Ans: -cardiovert atrial fib
and flutter
-reduce defibrillation threshold of chronic AF
⩥ corvert (ibutilide and fumarate) - action and effects. Ans: -prolongs
action potential duration and ERP in atria and ventricles without
affecting conduction
⩥ corvert (ibutilide and fumarate) - extra facts. Ans: -may cause torsades
⩥ nitroglycerin - EP use. Ans: -produce systemic vasodilation
⩥ nitroglycerin - action and effects. Ans: -decrease pulmonary vascular
resistance (muscle relaxant)
⩥ nitroglycerin - extra facts. Ans: -high doses produce systemic arterial
dilation
⩥ epinephrine - EP use. Ans: -treat cardiac arrest
, ⩥ epinephrine - action and effects. Ans: -alpha and beta adrenergic
stimulator
⩥ benzodiazepine - EP use. Ans: -sedation to relieve patient anxiety
⩥ benzodiazepine - action and effects. Ans: -binds to plasma proteins
-minor CNS depression and muscle relaxant
⩥ benzodiszepine - extra facts. Ans: -has long half-life
-can produce respiratory or cardiovascular depression
⩥ fentanyl - EP use. Ans: -sedation, pain management
-adjunct to local or inhalation anesthesia
⩥ fentanyl - action and effects. Ans: -similar to morphone, but 75-125x
more potent
⩥ quinidine (class 1a Na+ channel blocker) - therapeutic use. Ans: -treat
AFL, AF, reentrant SVTs, and VT
⩥ quinidine (class 1a Na+ channel blocker) - EP effects. Ans: -blocks
the Na+ channel and slows depolarization rate
COMPLETE QUESTIONS AND ANSWERS.
⩥ corvert (ibutilide and fumarate) - EP use. Ans: -cardiovert atrial fib
and flutter
-reduce defibrillation threshold of chronic AF
⩥ corvert (ibutilide and fumarate) - action and effects. Ans: -prolongs
action potential duration and ERP in atria and ventricles without
affecting conduction
⩥ corvert (ibutilide and fumarate) - extra facts. Ans: -may cause torsades
⩥ nitroglycerin - EP use. Ans: -produce systemic vasodilation
⩥ nitroglycerin - action and effects. Ans: -decrease pulmonary vascular
resistance (muscle relaxant)
⩥ nitroglycerin - extra facts. Ans: -high doses produce systemic arterial
dilation
⩥ epinephrine - EP use. Ans: -treat cardiac arrest
, ⩥ epinephrine - action and effects. Ans: -alpha and beta adrenergic
stimulator
⩥ benzodiazepine - EP use. Ans: -sedation to relieve patient anxiety
⩥ benzodiazepine - action and effects. Ans: -binds to plasma proteins
-minor CNS depression and muscle relaxant
⩥ benzodiszepine - extra facts. Ans: -has long half-life
-can produce respiratory or cardiovascular depression
⩥ fentanyl - EP use. Ans: -sedation, pain management
-adjunct to local or inhalation anesthesia
⩥ fentanyl - action and effects. Ans: -similar to morphone, but 75-125x
more potent
⩥ quinidine (class 1a Na+ channel blocker) - therapeutic use. Ans: -treat
AFL, AF, reentrant SVTs, and VT
⩥ quinidine (class 1a Na+ channel blocker) - EP effects. Ans: -blocks
the Na+ channel and slows depolarization rate