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Cardiovascular System Exam Questions And Answers
1. What procedure uses a catheter to open up a blocked or narrowed coronary artery, often involving the placement of a stent?
- A. Angioplasty
- B. Echocardiogram
- C. CT angiography
- D. Coronary artery bypass graft (CABG)
Correct answer: A
Rationale: The correct answer is Angioplasty. Angioplasty is a procedure that uses a catheter to open up a blocked or narrowed coronary artery, often involving the placement of a stent. Echocardiogram is a diagnostic test that uses sound waves to create images of the heart. CT angiography is a type of imaging test that looks at blood vessels, but it does not involve the placement of a stent. Coronary artery bypass graft (CABG) is a surgical procedure to improve blood flow to the heart muscle by bypassing blocked coronary arteries.
2. Which of the following is a central vasodilator and peripheral vasoconstrictor?
- A. Sympathetic nervous system
- B. Parasympathetic nervous system
- C. Norepinephrine
- D. Acetylcholine
Correct answer: A
Rationale: The correct answer is the Sympathetic nervous system. The sympathetic nervous system is a branch of the autonomic nervous system that is responsible for the fight-or-flight response. It causes vasodilation in central vessels to increase blood flow to vital organs during stress or exercise, while inducing vasoconstriction in peripheral vessels to redirect blood to essential areas. Norepinephrine and acetylcholine are neurotransmitters associated with the sympathetic and parasympathetic nervous systems, respectively, but they are not themselves central vasodilators and peripheral vasoconstrictors.
3. The nurse is caring for a client on amiodarone who complains of visual disturbances. What is the nurse’s best response?
- A. Notify the healthcare provider immediately.
- B. Reassure the client that this is a common side effect.
- C. Advise the client to monitor their symptoms at home.
- D. Suggest the client reduce physical activity.
Correct answer: A
Rationale: The correct answer is to notify the healthcare provider immediately. Visual disturbances in a client taking amiodarone can indicate amiodarone toxicity, a serious side effect. Notifying the healthcare provider promptly is essential for further assessment and management. Reassuring the client that this is a common side effect (choice B) is incorrect as visual disturbances should not be dismissed without evaluation. Advising the client to monitor their symptoms at home (choice C) may delay necessary intervention. Suggesting the client reduce physical activity (choice D) is unrelated to addressing visual disturbances caused by amiodarone.
4. Which type of lung cancer is strongly associated with exposure to asbestos?
- A. Mesothelioma
- B. Adenocarcinoma
- C. Squamous cell carcinoma
- D. Small cell lung cancer
Correct answer: A
Rationale: The correct answer is Mesothelioma. This type of lung cancer is indeed strongly associated with exposure to asbestos, affecting the lining of the lungs or abdomen. Adenocarcinoma, Squamous cell carcinoma, and Small cell lung cancer are not primarily linked to asbestos exposure, making them incorrect choices for this question.
5. Which of the following is a chronic condition characterized by difficulty breathing due to airflow obstruction, commonly associated with long-term smoking?
- A. Chronic obstructive pulmonary disease (COPD)
- B. Asthma
- C. Pulmonary hypertension
- D. Bronchitis
Correct answer: A
Rationale: The correct answer is A, Chronic obstructive pulmonary disease (COPD). COPD is a chronic lung condition characterized by persistent airflow obstruction, commonly linked to long-term smoking. Choice B, Asthma, is a chronic condition characterized by reversible airflow obstruction and airway inflammation triggered by various factors like allergens and irritants. Choice C, Pulmonary hypertension, is a condition characterized by high blood pressure in the arteries of the lungs. Choice D, Bronchitis, is an inflammation of the bronchial tubes that may be acute or chronic, but it is not typically associated with long-term smoking like COPD.
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