CCT CCT Pharmacology & Cardiac Medications 2

Question 1

Adenosine is the drug of choice for terminating which arrhythmia?

Accepted Answer

Paroxysmal supraventricular tachycardia (PSVT)

Answer

Adenosine transiently blocks AV nodal conduction, which terminates re-entrant tachycardias that depend on the AV node such as PSVT.

Question 2

ACE inhibitors are beneficial after myocardial infarction primarily because they:

Accepted Answer

Reduce ventricular remodeling and decrease afterload

Answer

ACE inhibitors block angiotensin II production, reducing afterload and preventing pathological ventricular remodeling that can lead to heart failure after MI.

Question 3

Epinephrine is given during cardiac arrest primarily because it:

Accepted Answer

Increases coronary and cerebral perfusion pressure

Answer

Epinephrine is an alpha-adrenergic agonist that causes vasoconstriction, raising aortic diastolic pressure and improving coronary and cerebral perfusion during CPR.

Question 4

Which of the following is the reversal agent for warfarin anticoagulation in an emergency?

Accepted Answer

Vitamin K and fresh frozen plasma (FFP)

Answer

Vitamin K restores clotting factor synthesis and FFP provides immediate clotting factors to rapidly reverse warfarin anticoagulation.

Question 5

Magnesium sulfate is the treatment of choice for which life-threatening arrhythmia?

Accepted Answer

Torsades de pointes

Answer

Magnesium sulfate stabilizes the cardiac membrane and is the first-line treatment for torsades de pointes, a polymorphic ventricular tachycardia associated with prolonged QT.

(CCT) Certified Cardiac Technician Practice Test

(CCT) Certified Cardiac Technician Practice Test

CCT CCT Pharmacology & Cardiac Medications 2