CVT CVT Pharmacology & Cardiac Medications

Question 1

Which class of antiarrhythmic drugs works primarily by blocking sodium channels to stabilize cardiac cell membranes?

Accepted Answer

Class I

Answer

Class II

Answer

Class III

Answer

Class IV

Question 2

Adenosine is used in the clinical setting primarily to:

Accepted Answer

Terminate paroxysmal supraventricular tachycardia

Answer

Convert atrial fibrillation to sinus rhythm

Answer

Increase heart rate in bradycardia

Answer

Reduce preload in heart failure

Question 3

Which anticoagulant is most commonly used during cardiac catheterization to prevent thrombus formation?

Accepted Answer

Heparin

Answer

Warfarin

Answer

Dabigatran

Answer

Rivaroxaban

Question 4

Nitroglycerin relieves angina primarily by:

Accepted Answer

Reducing preload and afterload through venous and arterial dilation

Answer

Increasing myocardial oxygen supply via coronary vasoconstriction

Answer

Blocking beta-adrenergic receptors

Answer

Increasing cardiac contractility

Question 5

A patient receiving digoxin therapy develops nausea, visual disturbances, and bradycardia. The CVT should suspect:

Accepted Answer

Digoxin toxicity

Answer

Anaphylaxis

Answer

Pulmonary embolism

Answer

Hypertensive crisis

Question 6

Beta-blockers are contraindicated in patients with which of the following conditions?

Accepted Answer

Decompensated heart failure

Answer

Stable angina

Answer

Post-MI management

Answer

Hypertension