ATI RN
Cardiovascular System Practice Exam
1. What is the condition where the lung collapses due to air leaking into the space between the lung and chest wall?
- A. Pneumothorax
- B. Pleural effusion
- C. Pulmonary fibrosis
- D. Lung cancer
Correct answer: A
Rationale: Pneumothorax is the correct answer. It is the collapse of a lung due to air leaking into the space between the lung and chest wall. This condition often requires emergency treatment. Choice B, Pleural effusion, is the buildup of excess fluid between the layers of the pleura outside the lung, not air. Choice C, Pulmonary fibrosis, is a lung disease characterized by scarring and thickening of lung tissue, not related to lung collapse. Choice D, Lung cancer, is the uncontrolled growth of abnormal cells in the lung, not directly causing lung collapse.
2. Which condition involves the tearing of the aorta, leading to severe pain and internal bleeding?
- A. Aortic dissection
- B. Aneurysm
- C. Stroke
- D. Myocardial infarction
Correct answer: A
Rationale: The correct answer is Aortic dissection. Aortic dissection is a life-threatening condition where the inner layer of the aorta tears, causing severe chest or back pain and internal bleeding, requiring immediate medical attention. Choice B, aneurysm, involves a bulging or weakening of a blood vessel wall, which is different from a tear in the aorta. Choices C and D, stroke and myocardial infarction, do not directly involve the tearing of the aorta and are distinct conditions.
3. Which condition is characterized by chronic inflammation of the airways resulting in excess mucus production, leading to frequent coughing and breathing difficulties?
- A. Chronic bronchitis
- B. Asthma
- C. Pneumonia
- D. COPD
Correct answer: A
Rationale: The correct answer is A, Chronic bronchitis. Chronic bronchitis involves long-term inflammation of the bronchi, leading to excessive mucus production, frequent coughing, and breathing difficulties. Asthma (B) is characterized by reversible airway obstruction and bronchospasms. Pneumonia (C) is an infection of the lungs caused by bacteria, viruses, or fungi. COPD (D) is a term used to describe chronic lung diseases that cause airflow blockage and breathing-related problems.
4. When administering an ACE inhibitor to a client with heart failure, what is the expected outcome of this medication?
- A. Decreased blood pressure
- B. Increased heart rate
- C. Increased cardiac output
- D. Decreased heart rate
Correct answer: C
Rationale: The correct answer is C: Increased cardiac output. ACE inhibitors are commonly used in heart failure to reduce the workload on the heart by decreasing blood pressure and increasing cardiac output. This ultimately helps improve the heart's efficiency and function. Choice A is incorrect because ACE inhibitors generally lead to a reduction in blood pressure. Choice B is incorrect as ACE inhibitors do not increase heart rate. Choice D is incorrect as ACE inhibitors do not typically decrease heart rate in the context of heart failure.
5. The nurse is administering a beta blocker to a client with a heart rate of 50 bpm. What is the priority action?
- A. Hold the beta blocker and notify the healthcare provider.
- B. Administer the beta blocker as ordered.
- C. Decrease the dose of the beta blocker.
- D. Monitor the client’s heart rate and reassess in 30 minutes.
Correct answer: A
Rationale: The correct action is to hold the beta blocker and notify the healthcare provider. A heart rate of 50 bpm is already low, and beta blockers can further decrease the heart rate, potentially causing adverse effects like bradycardia or heart block. Administering the beta blocker as ordered (Choice B) can exacerbate the low heart rate. Decreasing the dose of the beta blocker (Choice C) may not be sufficient to address the potential harm. Monitoring the client’s heart rate and reassessing in 30 minutes (Choice D) may delay necessary interventions if the heart rate drops further. Therefore, the priority is to hold the medication and seek guidance from the healthcare provider.
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