Which class of medications is commonly used for secondary prevention in patients with acute coronary syndrome?
Beta-blockers
Diuretics
Calcium channel blockers
Antibiotics
#5
What is the primary mechanism of action of angiotensin-converting enzyme (ACE) inhibitors in the treatment of acute coronary syndrome?
Vasodilation
Inhibition of platelet aggregation
Reduction of afterload
Decreased sympathetic activity
#6
Which of the following is a common symptom of unstable angina?
Persistent chest pain at rest
Chest pain relieved by rest
Chest pain associated with exercise
Chest pain triggered by emotional stress
#7
What is the primary purpose of administering oxygen in the early management of acute coronary syndrome?
To reduce blood pressure
To improve cardiac contractility
To relieve chest pain
To prevent hypoxia and tissue damage
#8
Which cardiac biomarker is considered specific for myocardial injury?
Troponin
Creatine kinase-MB (CK-MB)
Myoglobin
Brain natriuretic peptide (BNP)
#9
What is the recommended time frame for performing percutaneous coronary intervention (PCI) in patients with ST-elevation myocardial infarction (STEMI)?
Within 30 minutes
Within 60 minutes
Within 90 minutes
Within 120 minutes
#10
What is the primary goal of reperfusion therapy in the management of acute coronary syndrome?
Preventing arrhythmias
Restoring blood flow to the ischemic myocardium
Reducing inflammation
Lowering blood pressure
#11
What is the recommended target door-to-balloon time for primary percutaneous coronary intervention (PCI) in patients with ST-elevation myocardial infarction (STEMI)?