#1
Which of the following is a common symptom of myocardial infarction (heart attack)?
Persistent cough
Severe headache
Chest pain or discomfort
Blurred vision
#2
What is the primary purpose of administering oxygen to a patient experiencing a cardiac emergency?
To decrease heart rate
To improve cardiac output
To decrease blood pressure
To increase respiratory rate
#3
Which electrocardiogram (ECG) waveform represents ventricular depolarization?
P wave
QRS complex
T wave
ST segment
#4
What is the recommended initial treatment for a patient with suspected acute coronary syndrome (ACS)?
Immediate thrombolytic therapy
Administering beta-blockers
Oral antiplatelet therapy
Aspirin and oxygen therapy
#5
Which of the following is a common side effect of angiotensin-converting enzyme (ACE) inhibitors?
Hyperkalemia
Hypoglycemia
Hypertension
Hyperlipidemia
#6
What is the recommended first-line treatment for ventricular fibrillation?
Defibrillation
Administering antibiotics
Administering vasopressors
Performing chest compressions
#7
Which cardiac enzyme is most specific to myocardial injury?
Troponin
Creatine kinase-MB (CK-MB)
Lactate dehydrogenase (LDH)
Myoglobin
#8
What does the acronym 'CABG' stand for in cardiac care?
Coronary Artery Bypass Graft
Cardiac Arrhythmia Bypass Graft
Circulatory Arrest for Bypass Graft
Cardiopulmonary Artery Bypass Graft
#9
Which of the following is a common complication of cardiac catheterization?
Hypotension
Hypernatremia
Hypokalemia
Hemorrhage
#10
What is the recommended treatment for a patient with atrial fibrillation who presents with rapid ventricular response and hemodynamic instability?
Synchronized cardioversion
Administration of beta-blockers
Anticoagulation therapy
Amiodarone infusion
#11
Which medication is commonly used for acute management of angina pectoris?
Aspirin
Metoprolol
Nitroglycerin
Atorvastatin
#12
Which cardiac condition is characterized by a 'blowing' holosystolic murmur heard best at the apex?
Aortic stenosis
Mitral valve regurgitation
Tricuspid valve stenosis
Pulmonary valve stenosis
#13
In cardiac care, what does the term 'ejection fraction' refer to?
The amount of blood pumped out of the ventricles with each contraction
The volume of blood in the ventricles at the end of diastole
The percentage of blood ejected from the atria
The time taken for complete ventricular relaxation
#14
Which class of antiarrhythmic drugs primarily blocks sodium channels and is commonly used to treat ventricular arrhythmias?
Class I
Class II
Class III
Class IV
#15
What is the most common cause of right-sided heart failure?
Coronary artery disease
Hypertension
Chronic obstructive pulmonary disease (COPD)
Left-sided heart failure