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Cardiovascular System Exam Questions Pdf
1. 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.
2. The nurse is caring for a client on digoxin. What is the most important assessment before administering this medication?
- A. Check the client’s heart rate.
- B. Check the client’s blood pressure.
- C. Check the client’s respiratory rate.
- D. Check the client’s oxygen saturation.
Correct answer: A
Rationale: The correct answer is to check the client’s heart rate before administering digoxin because one of the side effects of digoxin is bradycardia. Monitoring the heart rate is crucial to assess whether the client's heart rate is within the acceptable range before giving the medication. Checking the blood pressure (Choice B), respiratory rate (Choice C), or oxygen saturation (Choice D) are important assessments in general patient care, but they are not specifically related to the administration of digoxin.
3. The client is receiving digoxin and complains of nausea. What is the nurse’s priority action?
- A. Check the client’s digoxin level.
- B. Continue the current dose of digoxin.
- C. Administer an antiemetic for nausea.
- D. Discontinue the digoxin immediately.
Correct answer: A
Rationale: The correct answer is to check the client’s digoxin level (Choice A). Nausea can be a sign of digoxin toxicity, so assessing the digoxin level is crucial to determine if the medication dosage needs adjustment. Continuing the current dose of digoxin (Choice B) may worsen the symptoms if toxicity is present. Administering an antiemetic (Choice C) may provide temporary relief but does not address the underlying issue of digoxin toxicity. Discontinuing digoxin immediately (Choice D) without assessing the digoxin level can be harmful if the medication is within the therapeutic range.
4. From where do these originate, behind the cusps of the aortic valve, in an area known as Valsalva’s sinus?
- A. Pulmonary valve
- B. Aortic valve
- C. Tricuspid valve
- D. Mitral valve
Correct answer: B
Rationale: The correct answer is B, Aortic valve. The aortic valve is a semilunar valve located between the left ventricle and the aorta. It prevents the backflow of blood from the aorta into the left ventricle. The pulmonary valve (choice A) is located between the right ventricle and the pulmonary artery, not in the Valsalva’s sinus area. The tricuspid valve (choice C) is situated between the right atrium and right ventricle, and the mitral valve (choice D) is located between the left atrium and left ventricle, making them incorrect choices for this question.
5. What procedure uses a balloon to open narrowed or blocked blood vessels in the heart?
- A. Angioplasty
- B. Coronary artery bypass graft
- C. Stent placement
- D. Valve replacement
Correct answer: A
Rationale: The correct answer is Angioplasty. Angioplasty is a procedure that involves using a balloon to open narrowed or blocked blood vessels in the heart, thereby improving blood flow. This choice is correct because it directly matches the description provided in the question. Choices B, C, and D are incorrect because they involve different procedures: Bypass graft is a surgical procedure to redirect blood flow, stent placement involves inserting a mesh tube to keep an artery open, and valve replacement is the surgical replacement of a heart valve.
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