ATI RN
Cardiovascular System Exam Questions
1. Which test uses sound waves to create images of the heart, allowing doctors to assess its structure and function?
- A. Echocardiogram
- B. MRI
- C. CT scan
- D. X-ray
Correct answer: A
Rationale: The correct answer is A: Echocardiogram. An echocardiogram is a test that uses sound waves to create images of the heart, enabling doctors to assess its structure and function. This imaging technique is particularly useful in detecting abnormalities such as valve disease. Choices B, C, and D are incorrect because MRI, CT scans, and X-rays use different imaging technologies that do not rely on sound waves to visualize the heart.
2. The client is prescribed warfarin. What should the client be taught about this medication?
- A. Avoid foods high in vitamin K.
- B. Take the medication with food to prevent stomach upset.
- C. Take the medication at the same time every day.
- D. Increase the dose if a dose is missed.
Correct answer: A
Rationale: The correct answer is A: Avoid foods high in vitamin K. Warfarin is an anticoagulant medication, and vitamin K can counteract its effects. Therefore, it is important for clients taking warfarin to avoid foods high in vitamin K to maintain the medication's effectiveness. Choice B is incorrect because warfarin should be taken consistently as prescribed, regardless of food intake. Choice C is incorrect because while consistency in timing is important, it is not specific to the effectiveness of warfarin. Choice D is incorrect because clients should never increase the dose of warfarin on their own, especially to make up for a missed dose, as it can lead to serious bleeding risks.
3. The client is on furosemide (Lasix) and has a potassium level of 2.9 mEq/L. What is the nurse’s priority action?
- A. Administer potassium supplements.
- B. Hold the furosemide and notify the healthcare provider.
- C. Continue the current dose of furosemide.
- D. Decrease the dose of furosemide.
Correct answer: A
Rationale: The correct answer is A: Administer potassium supplements. A potassium level of 2.9 mEq/L indicates hypokalemia (low potassium levels). Furosemide (Lasix) is a loop diuretic that can cause potassium loss. Therefore, the priority action is to administer potassium supplements to correct the imbalance. Option B is incorrect because holding the furosemide without addressing the low potassium level could further worsen the imbalance. Option C is incorrect as continuing the current dose of furosemide without addressing the low potassium level could lead to complications. Option D is incorrect because decreasing the dose of furosemide does not directly address the low potassium level that needs immediate correction.
4. 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.
5. The client on amiodarone reports shortness of breath. What is the nurse’s best response?
- A. Notify the healthcare provider immediately.
- B. Reassure the client that this is a common side effect.
- C. Instruct the client to monitor their symptoms at home.
- D. Suggest the client reduce physical activity.
Correct answer: A
Rationale: When a client on amiodarone reports shortness of breath, it can be indicative of pulmonary toxicity, a severe side effect associated with this medication. The nurse's priority is to notify the healthcare provider immediately to assess the situation and determine the appropriate course of action. Choice B is incorrect because shortness of breath with amiodarone should not be dismissed as a common side effect. Instructing the client to monitor symptoms at home (Choice C) may delay necessary intervention. Suggesting the client reduce physical activity (Choice D) does not address the potential serious nature of the symptom and the need for prompt evaluation.
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