ATI RN
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. The nurse is administering a beta blocker to a client with a heart rate of 58 bpm. What is the nurse’s priority action?
- A. Administer the beta blocker as ordered.
- B. Hold the beta blocker and notify the healthcare provider.
- C. Increase the dose of the beta blocker.
- D. Monitor the client’s heart rate and reassess in 30 minutes.
Correct answer: B
Rationale: The correct answer is B. A heart rate of 58 bpm is considered low, and beta blockers can further decrease the heart rate. Therefore, the nurse's priority action should be to hold the beta blocker and notify the healthcare provider for further assessment. Choice A is incorrect because administering the beta blocker without considering the low heart rate can worsen the condition. Choice C is incorrect as increasing the dose of the beta blocker can lead to further slowing of the heart rate, which is not safe in this situation. Choice D is not the priority action; holding the medication and seeking guidance from the healthcare provider is more crucial.
3. During which process does coronary artery blood flow to the myocardium occur during diastole, when coronary vascular resistance is reduced?
- A. Coronary perfusion pressure
- B. Coronary vascular resistance
- C. Diastolic filling
- D. Ventricular ejection
Correct answer: A
Rationale: The correct answer is A: Coronary perfusion pressure. Coronary perfusion pressure refers to the process of coronary artery blood flow to the myocardium during diastole when coronary vascular resistance is reduced. This process ensures that the myocardium receives sufficient oxygen and nutrients for proper functioning. Choice B, Coronary vascular resistance, is the opposite of what is described in the question. During coronary perfusion, resistance is reduced to enhance blood flow. Choices C and D, Diastolic filling and Ventricular ejection, do not directly relate to the process of coronary artery blood flow during diastole.
4. What is a condition where the airways become swollen and produce extra mucus, making it difficult to breathe, often associated with COPD?
- A. Chronic bronchitis
- B. Pneumonia
- C. Emphysema
- D. Tuberculosis
Correct answer: A
Rationale: Chronic bronchitis is the correct answer. It is a long-term inflammation of the bronchi, leading to persistent cough and mucus production, commonly associated with chronic obstructive pulmonary disease (COPD). Pneumonia (Choice B) is an infection that inflames the air sacs in one or both lungs. Emphysema (Choice C) is a lung condition where the air sacs in the lungs are damaged, making it difficult to breathe. Tuberculosis (Choice D) is a bacterial infection that primarily affects the lungs.
5. What is a condition where the heart's ability to pump blood is decreased, leading to fluid buildup in the lungs and other parts of the body?
- A. Heart failure
- B. Cardiomyopathy
- C. Pericarditis
- D. Myocarditis
Correct answer: A
Rationale: The correct answer is A, heart failure. Heart failure is a condition where the heart is unable to pump blood effectively, leading to fluid accumulation in the lungs and other areas. Choice B, Cardiomyopathy, refers to diseases of the heart muscle. Choices C and D, Pericarditis and Myocarditis, respectively, are conditions involving inflammation of the outer lining of the heart and the heart muscle itself, which may not always directly result in decreased pumping ability like heart failure does.
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