ATI RN
Cardiovascular System Exam Questions
1. The client asks about side effects of taking digoxin. How does the nurse respond?
- A. Anorexia can be a side effect of digoxin.
- B. Tachycardia can be a side effect of digoxin.
- C. Constipation can be a side effect of digoxin.
- D. Urinary retention can be a side effect of digoxin.
Correct answer: A
Rationale: The correct answer is A: 'Anorexia can be a side effect of digoxin.' Anorexia, nausea, vomiting, and diarrhea are commonly known side effects of digoxin. Choice B, 'Tachycardia can be a side effect of digoxin,' is incorrect as digoxin is used to treat tachycardia, not cause it. Choice C, 'Constipation can be a side effect of digoxin,' is incorrect as constipation is not a typical side effect of digoxin. Choice D, 'Urinary retention can be a side effect of digoxin,' is also incorrect as urinary retention is not a common side effect associated with digoxin use.
2. Which condition is characterized by the weakening and rupture of the walls of the alveoli in the lungs, reducing the surface area available for gas exchange?
- A. Emphysema
- B. Bronchitis
- C. Atelectasis
- D. Pulmonary fibrosis
Correct answer: A
Rationale: The correct answer is A, Emphysema. Emphysema is a lung condition where the walls of the alveoli become weak and rupture, reducing the surface area available for gas exchange. This leads to shortness of breath. Choice B, Bronchitis, is characterized by inflammation of the bronchial tubes, not the alveoli. Choice C, Atelectasis, involves the collapse of a part or entire lung, not the weakening and rupture of alveolar walls. Choice D, Pulmonary fibrosis, is a condition where lung tissue becomes thickened and stiff, not involving the weakening and rupture of alveoli walls.
3. What is a type of medication that helps to prevent blood clots by thinning the blood?
- A. Anticoagulant
- B. Beta-blocker
- C. ACE inhibitor
- D. Calcium channel blocker
Correct answer: A
Rationale: Anticoagulants are medications specifically designed to prevent blood clots by thinning the blood. They work by interfering with the body's blood clotting process. Beta-blockers, ACE inhibitors, and calcium channel blockers are medications used for different purposes such as managing blood pressure, heart conditions, and regulating heart rhythm, respectively. However, they do not have the primary function of preventing blood clots like anticoagulants.
4. 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.
5. What term refers to the degree of myocardial fiber stretch before contraction, related to the volume of blood distending the ventricles at the end of diastole, and determined by the amount of venous return?
- A. Preload
- B. Afterload
- C. Contractility
- D. Ejection fraction
Correct answer: A
Rationale: The correct answer is A: Preload. Preload is the degree of myocardial fiber stretch before contraction, influenced by the volume of blood returning to the heart. This parameter is related to the amount of blood in the ventricles at the end of diastole. Choice B, Afterload, refers to the pressure or resistance that the ventricles must overcome to eject blood. Choice C, Contractility, is the intrinsic ability of the heart muscle to contract. Choice D, Ejection fraction, is the percentage of blood pumped out of the ventricles with each contraction.
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