ATI RN
Cardiovascular System Exam
1. Which of the following is a chronic lung disease that includes conditions such as chronic bronchitis and emphysema, characterized by obstructed airflow from the lungs?
- A. Chronic obstructive pulmonary disease (COPD)
- B. Pulmonary fibrosis
- C. Asthma
- D. Pneumonia
Correct answer: A
Rationale: The correct answer is A, Chronic obstructive pulmonary disease (COPD). COPD is a chronic lung disease that encompasses conditions like chronic bronchitis and emphysema. These conditions lead to obstructed airflow from the lungs, causing symptoms such as cough, shortness of breath, and wheezing. Choice B, Pulmonary fibrosis, involves scarring of the lung tissue, leading to breathing difficulties but is not specifically characterized by obstructed airflow like COPD. Asthma (Choice C) is a chronic condition characterized by airway inflammation and bronchoconstriction, not always resulting in obstructed airflow. Pneumonia (Choice D) is an acute infection of the lung tissue, causing symptoms like fever, cough, and difficulty breathing, but is not a chronic condition like COPD.
2. Which of the following is a chronic inflammatory disease of the airways that causes episodes of wheezing, breathlessness, chest tightness, and coughing?
- A. Asthma
- B. Bronchitis
- C. Pneumonia
- D. Emphysema
Correct answer: A
Rationale: Asthma is the correct answer. It is a chronic inflammatory disease of the airways characterized by episodes of wheezing, breathlessness, chest tightness, and coughing. These symptoms are often triggered by allergens or exercise. Bronchitis is an inflammation of the bronchial tubes, but it is not typically chronic or involve the same triggers as asthma. Pneumonia is an infection of the lungs, and emphysema is a type of chronic obstructive pulmonary disease (COPD) often caused by smoking.
3. What is the amount of tension the ventricle must develop during contraction to eject blood from the left ventricle into the aorta?
- A. Afterload
- B. Preload
- C. Automaticity
- D. Ejection fraction
Correct answer: A
Rationale: Afterload is the correct answer because it refers to the pressure or tension that the ventricle must overcome during systole to eject blood into the aorta. Preload, on the other hand, is the degree of stretch of the ventricular muscle at the end of diastole before it contracts. Automaticity is the ability of the heart to generate electrical impulses independently, and ejection fraction is the percentage of blood pumped out of the ventricle with each heartbeat. Therefore, in the context of the question, afterload best describes the amount of tension the ventricle must develop to eject blood into the aorta.
4. The client on amiodarone develops symptoms of hypothyroidism. What is the nurse’s best response?
- A. Notify the healthcare provider immediately.
- B. Reassure the client that this is a common side effect of amiodarone.
- C. Monitor the client’s thyroid function tests regularly.
- D. Discontinue the amiodarone immediately.
Correct answer: C
Rationale: When a client on amiodarone develops symptoms of hypothyroidism, the nurse's best response is to monitor the client's thyroid function tests regularly. Amiodarone can affect thyroid function, so monitoring is essential to assess the impact and adjust treatment if necessary. Notifying the healthcare provider immediately (Choice A) may be necessary in some cases but the priority is to monitor first. Reassuring the client (Choice B) is not sufficient as monitoring is crucial. Discontinuing amiodarone (Choice D) abruptly without healthcare provider guidance can lead to serious consequences.
5. What is a condition where the arteries that supply blood to the heart muscle become hardened and narrowed due to the buildup of plaque?
- A. Atherosclerosis
- B. Aneurysm
- C. Arrhythmia
- D. Peripheral artery disease
Correct answer: A
Rationale: Atherosclerosis is the correct answer. It is a condition characterized by the hardening and narrowing of arteries supplying blood to the heart due to plaque buildup. This condition increases the risk of heart attacks. Choice B, aneurysm, refers to a balloon-like bulge in an artery, not the hardening and narrowing of arteries. Choice C, arrhythmia, is an irregular heartbeat and not related to arterial hardening. Choice D, peripheral artery disease, involves the narrowing of arteries that supply blood to the limbs, not specifically to the heart.
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