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Cardiovascular System Exam Questions And Answers
1. What is a surgical procedure to replace a damaged or diseased heart valve with a prosthetic valve?
- A. Valve replacement
- B. Angioplasty
- C. Stent placement
- D. Bypass surgery
Correct answer: A
Rationale: Valve replacement is the correct answer because it involves replacing a damaged or diseased heart valve with a prosthetic valve. This procedure is essential for improving blood flow and heart function. Angioplasty (choice B) is a procedure to widen narrowed or obstructed arteries. Stent placement (choice C) involves inserting a mesh tube to help support weak arteries. Bypass surgery (choice D) is a procedure to create new routes for blood flow when arteries are blocked.
2. A client on a beta blocker has a blood pressure of 90/60 mm Hg. What is the nurse’s priority action?
- A. Hold the beta blocker and notify the healthcare provider.
- B. Administer the beta blocker as ordered.
- C. Administer a diuretic to reduce blood pressure.
- D. Continue to monitor the client and reassess in 30 minutes.
Correct answer: A
Rationale: The correct answer is to hold the beta blocker and notify the healthcare provider. A blood pressure of 90/60 mm Hg is already low, and beta blockers can further decrease blood pressure. Administering the beta blocker can potentially worsen the situation, leading to complications. Administering a diuretic or continuing to monitor the client without taking immediate action could delay necessary intervention. Therefore, holding the beta blocker and involving the healthcare provider promptly is crucial in this scenario.
3. What is a condition where the heart beats too fast, reducing its ability to pump blood effectively?
- A. Tachycardia
- B. Bradycardia
- C. Arrhythmia
- D. Ventricular fibrillation
Correct answer: A
Rationale: Tachycardia is the correct answer because it is a condition characterized by a fast heart rate, which can decrease the heart's efficiency in pumping blood. Bradycardia, on the other hand, refers to a slow heart rate, which is the opposite of what is described in the question. Arrhythmia is a general term for any irregularity in the heart's rhythm, not necessarily specifically related to a fast heart rate. Ventricular fibrillation is a life-threatening arrhythmia where the heart's lower chambers quiver instead of pumping blood effectively, but it is not specifically characterized by a fast heart rate.
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. Which condition is characterized by the right ventricle of the heart failing due to increased pressure in the lungs, often caused by chronic lung disease?
- A. Cor pulmonale
- B. Pulmonary embolism
- C. Aortic stenosis
- D. Hypertrophic cardiomyopathy
Correct answer: A
Rationale: The correct answer is Cor pulmonale, a condition where the right ventricle of the heart fails due to increased pressure in the lungs, commonly caused by chronic lung diseases like COPD. Pulmonary embolism (choice B) is a blockage in one of the pulmonary arteries in the lungs, usually caused by a blood clot. Aortic stenosis (choice C) is a narrowing of the aortic valve opening that restricts blood flow from the left ventricle to the aorta. Hypertrophic cardiomyopathy (choice D) is a genetic condition where the heart muscle becomes abnormally thick, making it harder for the heart to pump blood.
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