ATI RN
Cardiovascular System Exam Questions
1. The nurse is administering enoxaparin (Lovenox) to a client. What is the most important lab value to monitor?
- A. Platelet count
- B. Hemoglobin
- C. White blood cell count
- D. aPTT
Correct answer: A
Rationale: The correct answer is A: Platelet count. When administering enoxaparin, it is crucial to monitor the platelet count because enoxaparin can lead to a rare but serious side effect known as thrombocytopenia, which is a decrease in platelet levels. Monitoring the platelet count helps in detecting this adverse effect early. Choices B, C, and D are incorrect because hemoglobin, white blood cell count, and aPTT are not the most important lab values to monitor specifically for enoxaparin administration.
2. The nurse is caring for a client in a sickle cell crisis. Which is the pain regimen of choice to relieve the pain?
- A. Frequent aspirin (acetylsalicylic acid) and a non-narcotic analgesic
- B. Motrin (ibuprofen), an NSAID, PRN
- C. Demerol (meperidine), a narcotic analgesic, every four (4) hours
- D. Morphine, a narcotic analgesic, every two (2) to three (3) hours PRN
Correct answer: D
Rationale: In a sickle cell crisis, morphine is the preferred analgesic due to its potency and effectiveness in managing severe pain. Choice A is incorrect because aspirin is contraindicated in sickle cell disease due to its potential to cause a further decrease in blood flow. Choice B, Motrin (ibuprofen), is also not the ideal choice as NSAIDs can exacerbate renal complications in sickle cell patients. Choice C, Demerol (meperidine), is not recommended for sickle cell pain management due to its toxic metabolite accumulation which can cause seizures and other complications.
3. Which of the following foods provides the most protein?
- A. Beans
- B. Red peppers
- C. Asparagus
- D. Celery
Correct answer: A
Rationale: The correct answer is 'Beans.' Beans are a rich source of plant-based protein, making them the best option among the listed foods for protein content. Red peppers, asparagus, and celery are not significant sources of protein compared to beans, hence they are incorrect choices for this question.
4. Which of the following leaders would be considered a transformational leader?
- A. The supervisor of a unit who requests staff to work overtime.
- B. The unit secretary who encourages staff to use the proper forms.
- C. A unit manager who reminds a CNA (Certified Nursing Assistant) to work on time management skills.
- D. The Advanced Practice Nurse who encourages a staff nurse to pursue additional education for career advancement.
Correct answer: D
Rationale: The correct answer is D because transformational leaders are known for inspiring and motivating their followers to reach their full potential. They focus on fostering a positive work environment, encouraging growth, and supporting career development. In this scenario, the Advanced Practice Nurse is displaying characteristics of a transformational leader by encouraging a staff nurse to pursue additional education for career advancement. Choices A, B, and C do not align with the traits of a transformational leader as they involve more routine tasks or directives without the inspirational and visionary approach typical of transformational leadership.
5. Which of the following are normal arterial blood gas values?
- A. PH 7.25, PaCO2 52 mm Hg, PaO2 75 mm Hg, HCO3 18 mEq/L
- B. PH 7.50, PaCO2 30 mm Hg, PaO2 80 mm Hg, HCO3 28 mEq/L
- C. PH 7.40, PaCO2 40 mm Hg, PaO2 90 mm Hg, HCO3 24 mEq/L
- D. PH 7.15, PaCO2 30 mm Hg, PaO2 50 mm Hg, HCO3 24 mEq/L
Correct answer: C
Rationale: The correct answer is C: PH 7.40, PaCO2 40 mm Hg, PaO2 90 mm Hg, HCO3 24 mEq/L. These values represent a balanced state for arterial blood gas. Choice A has lower than normal PH and HCO3 levels and higher PaCO2 and lower PaO2 levels. Choice B has higher than normal PH and HCO3 levels, lower PaCO2, and a normal PaO2 level. Choice D has a significantly lower PH and PaO2 level, normal HCO3 level, and low PaCO2 level, indicating an acidic state with impaired oxygenation.
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