ATI RN
Cardiovascular System Exam Questions
1. What is a life-threatening condition where the heart suddenly stops beating?
- A. Cardiac arrest
- B. Myocardial infarction
- C. Heart failure
- D. Atrial fibrillation
Correct answer: A
Rationale: Cardiac arrest is the correct answer. It is a sudden, unexpected loss of heart function, breathing, and consciousness, typically resulting in death if not treated immediately. Myocardial infarction (choice B) refers to a heart attack caused by a blockage in the coronary arteries. Heart failure (choice C) is a chronic condition where the heart is unable to pump blood efficiently. Atrial fibrillation (choice D) is an irregular and often rapid heart rate that can lead to complications but is not the same as cardiac arrest.
2. What condition involves a weakened and bulging aorta, the main artery in the body, potentially leading to rupture?
- A. Aortic aneurysm
- B. Arterial stenosis
- C. Pulmonary embolism
- D. Deep vein thrombosis
Correct answer: A
Rationale: An aortic aneurysm is a condition characterized by the weakening and bulging of the aorta, the body's main artery. If left untreated, this bulging may lead to a rupture, causing severe complications. Arterial stenosis refers to the narrowing of an artery, not the weakening and bulging seen in an aortic aneurysm. Pulmonary embolism involves a blockage in the pulmonary artery, which is different from the weakening and bulging in an aortic aneurysm. Deep vein thrombosis is the formation of a blood clot in a deep vein, not related to the condition described in the question.
3. What is a chronic inflammatory disease that affects the small airways in the lungs, leading to episodes of wheezing, breathlessness, and coughing?
- A. Asthma
- B. COPD
- C. Bronchitis
- D. Lung cancer
Correct answer: A
Rationale: Asthma is the correct answer. It is a chronic inflammatory disease that affects the small airways in the lungs, leading to symptoms like wheezing, breathlessness, and coughing. Asthma is commonly triggered by allergens, exercise, respiratory infections, and other factors. Choice B, COPD (Chronic Obstructive Pulmonary Disease), is characterized by airflow limitation and is often caused by smoking. Choice C, Bronchitis, is an inflammation of the bronchial tubes and can be acute or chronic. Choice D, Lung cancer, is a disease characterized by uncontrolled cell growth in lung tissues and is commonly associated with smoking or environmental factors.
4. Which term describes a type of abnormal heart rhythm characterized by rapid and irregular beating of the atria?
- A. Atrial fibrillation
- B. Ventricular fibrillation
- C. Atrial flutter
- D. Sinus tachycardia
Correct answer: A
Rationale: The correct answer is Atrial fibrillation. Atrial fibrillation is indeed a type of abnormal heart rhythm characterized by rapid and irregular beating of the atria. This condition can increase the risk of stroke and heart failure. Choice B, Ventricular fibrillation, is incorrect because it refers to a life-threatening arrhythmia that occurs in the ventricles, not the atria. Choice C, Atrial flutter, is incorrect as it describes a different type of atrial arrhythmia characterized by a regular but fast heartbeat. Choice D, Sinus tachycardia, is incorrect because it is a normal increase in heart rate originating from the sinus node, not an abnormal rhythm.
5. What is the procedure where a small mesh tube is inserted into an artery to keep it open after angioplasty?
- A. Stent placement
- B. Bypass surgery
- C. Angioplasty
- D. Valve replacement
Correct answer: A
Rationale: The correct answer is A, stent placement. Stent placement involves inserting a small mesh tube into an artery to maintain its openness after angioplasty. This choice is correct because it directly describes the procedure mentioned in the question. Choices B, C, and D are incorrect. Bypass surgery involves rerouting blood flow around a blocked artery using a vessel from another part of the body. Angioplasty is the procedure of widening a narrowed or blocked blood vessel, often followed by stent placement. Valve replacement is a surgical procedure to replace a damaged or diseased heart valve with an artificial or biological valve.
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