ATI RN
Cardiovascular System Exam Questions
1. What is the condition where the pericardium, the sac surrounding the heart, becomes inflamed, leading to chest pain and other symptoms?
- A. Pericarditis
- B. Myocarditis
- C. Endocarditis
- D. Pulmonary hypertension
Correct answer: A
Rationale: Pericarditis is the correct answer. It is the inflammation of the pericardium, the sac surrounding the heart, which can lead to chest pain and other symptoms. Myocarditis (choice B) is inflammation of the heart muscle, not the pericardium. Endocarditis (choice C) is inflammation of the inner lining of the heart chambers and valves, not the pericardium. Pulmonary hypertension (choice D) is high blood pressure in the arteries of the lungs, not related to pericardial inflammation.
2. 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.
3. When administering furosemide (Lasix) to a client, which lab value is most important to monitor?
- A. Potassium
- B. Sodium
- C. Calcium
- D. Chloride
Correct answer: A
Rationale: When administering furosemide (Lasix), it is crucial to monitor potassium levels closely. Furosemide is a loop diuretic that can lead to potassium loss, potentially causing hypokalemia. Monitoring potassium levels helps prevent adverse effects associated with low potassium, such as cardiac arrhythmias. While monitoring sodium, calcium, and chloride levels may also be important in certain situations, potassium is the most critical to monitor when administering furosemide.
4. What is a condition where the coronary arteries become narrowed or blocked, leading to reduced blood flow to the heart muscle?
- A. Coronary artery disease (CAD)
- B. Atherosclerosis
- C. Stroke
- D. Peripheral artery disease
Correct answer: A
Rationale: The correct answer is A, Coronary artery disease (CAD). CAD is a condition where the coronary arteries become narrowed or blocked, leading to reduced blood flow to the heart muscle and an increased risk of heart attack. Choice B, Atherosclerosis, is a related condition involving the buildup of fats, cholesterol, and other substances in and on the artery walls, but it is not specific to the coronary arteries. Choices C and D, Stroke and Peripheral artery disease, respectively, involve different arteries and conditions, not directly related to the narrowing or blockage of the coronary arteries.
5. The client on spironolactone (Aldactone) has a potassium level of 5.8 mEq/L. What is the nurse’s priority action?
- A. Hold the spironolactone and notify the healthcare provider.
- B. Administer a potassium supplement.
- C. Continue the spironolactone as ordered.
- D. Increase the dose of spironolactone.
Correct answer: A
Rationale: With a potassium level of 5.8 mEq/L, which is high, the priority action for the nurse is to hold the spironolactone. Spironolactone is a potassium-sparing diuretic that can further increase potassium levels. Therefore, it is crucial to prevent exacerbating hyperkalemia by discontinuing the medication. Notifying the healthcare provider is necessary for further guidance and potential adjustments to the treatment plan. Administering a potassium supplement (Choice B) would be contraindicated since the client already has elevated potassium levels. Continuing the spironolactone as ordered (Choice C) can worsen hyperkalemia. Increasing the dose of spironolactone (Choice D) would be unsafe and exacerbate the high potassium levels.
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