IBHRE COMPREHENSIVE TEST PAPER QUESTIONS AND ANSWERS VERIFIED GRADED A+

IBHRE COMPREHENSIVE TEST PAPER
QUESTIONS AND ANSWERS VERIFIED
GRADED A+

●● adenosine - action and effects
Answer: -profound but fleeting depressive effect on SA and AV node
-potent but fleeting vasodilatory effect


●● adenosine - extra facts
Answer: -helpful in diagnosing wide complex SVT from VT
-half-life is less than 10 seconds


●● atropine - EP use
Answer: -treat symptomatic bradycardia, junctional escape mechanisms,
and second of third degree AV block


●● atropine - action and effects
Answer: -blocked parasympathetic response of the SA node
-improves the heart rate and AV conduction


●● atropine - extra facts
Answer: -requires caution in the setting of acute MI

, ●● isuprel - EP use
Answer: -speed up the SA node and atrial tissue conduction to study
tachycardias


●● isuprel - action and effect
Answer: -pure beta adrenergic stimulator. Increases heart rate,
automaticity, and contractility


●● isuprel - extra facts
Answer: -may cause nervousness, insomnia, anxiety, or tension
-high doses may be life-threatening


●● corvert (ibutilide and fumarate) - EP use
Answer: -cardiovert atrial fib and flutter
-reduce defibrillation threshold of chronic AF


●● corvert (ibutilide and fumarate) - action and effects
Answer: -prolongs action potential duration and ERP in atria and
ventricles without affecting conduction


●● corvert (ibutilide and fumarate) - extra facts
Answer: -may cause torsades