CCS CCS Pharmacology & Cardiovascular Medications

Question 1

Which class of antiarrhythmic drug works by blocking sodium channels and is classified as a Class I agent?

Accepted Answer

Lidocaine

Answer

Amiodarone

Answer

Metoprolol

Answer

Verapamil

Question 2

A patient on warfarin therapy should have their INR maintained in what therapeutic range for atrial fibrillation?

Accepted Answer

2.0–3.0

Answer

1.0–1.5

Answer

3.5–4.5

Answer

4.5–5.5

Question 3

Which medication is the first-line treatment for acute anaphylaxis that can cause cardiovascular collapse?

Accepted Answer

Epinephrine

Answer

Diphenhydramine

Answer

Methylprednisolone

Answer

Albuterol

Question 4

Beta-blockers such as metoprolol reduce heart rate primarily by which mechanism?

Accepted Answer

Antagonizing beta-1 adrenergic receptors in the heart

Answer

Blocking calcium channels in the SA node

Answer

Inhibiting the sodium-potassium ATPase pump

Answer

Stimulating muscarinic receptors in cardiac tissue

Question 5

Which antiplatelet medication inhibits ADP-mediated platelet aggregation and is commonly prescribed after coronary stent placement?

Accepted Answer

Clopidogrel

Answer

Aspirin

Answer

Heparin

Answer

Warfarin

Question 6

Nitroglycerin relieves angina primarily by which action?

Accepted Answer

Causing coronary and peripheral vasodilation

Answer

Increasing myocardial oxygen demand

Answer

Reducing heart rate by blocking beta receptors

Answer

Inhibiting platelet aggregation