ATI RN
Cardiovascular System Practice Exam
1. The client on warfarin has an INR of 3.8. What is the most appropriate action by the nurse?
- A. Administer vitamin K.
- B. Hold the next dose of warfarin.
- C. Increase the dose of warfarin.
- D. Notify the healthcare provider immediately.
Correct answer: A
Rationale: An INR of 3.8 is elevated, indicating an increased risk of bleeding. Administering vitamin K can help reverse the effects of warfarin. Holding the next dose of warfarin would be appropriate if the INR was too high, but not as the first-line action. Increasing the dose of warfarin would worsen the situation by further increasing the INR. Notifying the healthcare provider is important, but immediate action to address the elevated INR is necessary.
2. The healthcare provider is monitoring a client on an ACE inhibitor. What lab value is most important to monitor?
- A. Potassium
- B. Sodium
- C. Creatinine
- D. Calcium
Correct answer: A
Rationale: The correct answer is A: Potassium. When a client is on an ACE inhibitor, it is crucial to monitor potassium levels because ACE inhibitors can lead to an increase in potassium, potentially causing hyperkalemia. Monitoring sodium levels (Choice B) is not as critical in this scenario. Creatinine levels (Choice C) are important for assessing kidney function but are not the most crucial lab value to monitor with ACE inhibitors. Calcium levels (Choice D) are not directly affected by ACE inhibitors and are not the priority for monitoring in this case.
3. A nurse is providing dietary teaching to a client who has a new diagnosis of celiac disease. Which of the following foods should the nurse instruct the client to avoid?
- A. Rice
- B. Barley soup
- C. Cornbread
- D. Potatoes
Correct answer: B
Rationale: The correct answer is B: Barley soup. Barley contains gluten, which is harmful to individuals with celiac disease. Therefore, the nurse should instruct the client to avoid barley-containing foods like barley soup. Choices A, C, and D are safe options for individuals with celiac disease as they do not contain gluten. Rice, cornbread, and potatoes are gluten-free and can be included in the client's diet.
4. A nurse in the medical-surgical unit has a newly admitted patient who is oliguric; the acute care nurse practitioner orders a fluid challenge of 100 to 200 mL of normal saline solution over 15 minutes. The nurse is aware this intervention will help:
- A. Distinguish hyponatremia from hypernatremia
- B. Evaluate pituitary gland function
- C. Distinguish reduced renal blood flow from decreased renal function
- D. Provide an effective treatment for hypertension-induced oliguria
Correct answer: C
Rationale: Administering a fluid challenge in oliguric patients helps to distinguish reduced renal blood flow from decreased renal function. This intervention aids in determining whether the oliguria is due to reduced renal blood flow (such as in fluid volume deficit or prerenal azotemia) or decreased renal function (such as in acute tubular necrosis). The response to this challenge can indicate the underlying cause. Choices A, B, and D are incorrect as they do not align with the purpose of a fluid challenge in oliguric patients.
5. Which of the following characteristics is not a feature of borderline personality disorder?
- A. Intense fear of abandonment
- B. Unstable relationships
- C. Impulsivity
- D. Grandiosity
Correct answer: D
Rationale: Borderline personality disorder is characterized by an intense fear of abandonment, unstable relationships, impulsivity, and chronic feelings of emptiness. Grandiosity, which involves an inflated sense of self-importance, is typically associated with narcissistic personality disorder rather than borderline personality disorder.
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