ECG Cardiac Pharmacology

Question 1

Which class of medications slows the heart rate by blocking beta-adrenergic receptors?

Accepted Answer

Beta-blockers

Answer

Calcium channel blockers

Answer

ACE inhibitors

Answer

Diuretics

Question 2

What is the primary use of nitroglycerin in cardiac patients?

Accepted Answer

To relieve angina by dilating blood vessels

Answer

To increase heart rate

Answer

To prevent blood clots

Answer

To lower cholesterol

Question 3

Which anticoagulant is commonly used to prevent stroke in atrial fibrillation?

Accepted Answer

Warfarin or DOACs (direct oral anticoagulants)

Answer

Aspirin alone

Answer

Acetaminophen

Answer

Statins

Question 4

What does atropine do to the heart rate?

Accepted Answer

Increases it by blocking vagal (parasympathetic) tone

Answer

Decreases it

Answer

Has no effect on heart rate

Answer

Stops the heart temporarily

Question 5

What is the antidote for warfarin overdose?

Accepted Answer

Vitamin K

Answer

Protamine sulfate

Answer

Naloxone

Answer

Flumazenil

Question 6

Why are statins prescribed for cardiac patients?

Accepted Answer

To lower LDL cholesterol and reduce atherosclerosis risk

Answer

To increase heart rate

Answer

To reduce blood sugar

Answer

To treat arrhythmias