NCLEX-RN
NCLEX RN Practice Questions With Rationale
1. What ethical principle has led to the need for informed consent?
- A. Autonomy
- B. Justice
- C. Fidelity
- D. Beneficence
Correct answer: A
Rationale: Autonomy is the ethical principle that emphasizes an individual's right to make their own decisions if they are mentally competent. Informed consent is a direct result of this principle, as it ensures that patients are fully informed before agreeing to any medical intervention. Autonomy is crucial in healthcare as it respects patients' rights and promotes self-determination. Justice, fidelity, and beneficence are important ethical principles in healthcare, but they do not directly lead to the need for informed consent. Justice focuses on fairness and equal treatment, fidelity on trustworthiness and loyalty, and beneficence on doing good for the patient's benefit.
2. A client with asthma is being admitted for breathing difficulties. His arterial blood gas results are pH 7.26, PCO2 49, PaO2 90, and HCO3- 21. Which of the following best describes this condition?
- A. Uncompensated respiratory acidosis
- B. Compensated respiratory alkalosis
- C. Uncompensated metabolic acidosis
- D. Compensated metabolic alkalosis
Correct answer: A
Rationale: In this case, the client's arterial blood gas results show a pH of 7.26 and a PCO2 of 49, both of which are abnormal. A pH below the normal range of 7.35-7.45 indicates acidosis. The elevated PCO2 of 49 mmHg suggests respiratory acidosis as the primary issue. The normal range for PCO2 is 35-45 mmHg, so a value of 49 indicates the retention of excess CO2, leading to acidosis. The low HCO3- level of 21 also supports the presence of metabolic acidosis; however, the primary abnormality is respiratory, making this an uncompensated respiratory acidosis. Therefore, the correct answer is 'Uncompensated respiratory acidosis.' Choice B, 'Compensated respiratory alkalosis,' is incorrect because the client's pH is acidic, not alkalotic. Additionally, there is no compensation occurring for the primary respiratory acidosis indicated by the elevated PCO2. Choice C, 'Uncompensated metabolic acidosis,' is incorrect because while the HCO3- level is low, the primary issue indicated by the elevated PCO2 is respiratory acidosis. Choice D, 'Compensated metabolic alkalosis,' is incorrect since the arterial blood gas results do not support a metabolic alkalosis. The low HCO3- level would typically be seen in metabolic acidosis, but in this case, the primary issue is respiratory acidosis.
3. When a blood pressure cuff is too wide for a client's arm, what type of reading might this blood pressure cuff produce?
- A. A normal reading
- B. An abnormally low reading
- C. An abnormally high reading
- D. A fluctuating reading
Correct answer: B
Rationale: When a blood pressure cuff is too wide for a client's arm, it may produce an abnormally low blood pressure reading. This occurs because the oversized cuff can lead to an underestimation of blood pressure. It is essential to ensure that the cuff fits appropriately to obtain an accurate reading. An abnormally high reading (Choice C) is less likely with an oversized cuff, as it generally leads to lower readings. A normal reading (Choice A) is unlikely due to the inaccuracies caused by the oversized cuff. A fluctuating reading (Choice D) is not a typical result of using a cuff that is too wide; instead, it usually leads to consistently low readings.
4. The nurse is discussing the need for early diagnosis and treatment of autism spectrum disorder (ASD) with parents of children suspected of having the condition. Which statement should the nurse include?
- A. Early diagnosis and treatment provide the only means for a cure of ASD.
- B. Early diagnosis and treatment gives your child the best chance of becoming a fully functioning adult.
- C. Early diagnosis and treatment provides the best way to ensure that your child can be admitted to an assisted living facility as an adult.
- D. Early diagnosis and treatment prevent your child from developing any other mental condition.
Correct answer: B
Rationale: The correct statement for the nurse to include is that early diagnosis and treatment provide the best chance for the child to become a fully functioning adult. It is important to educate parents that while early intervention can improve outcomes for individuals with ASD, it does not offer a cure but helps in managing symptoms and developing necessary skills. Choice A is incorrect as there is currently no cure for ASD. Choice C is inaccurate as early diagnosis and treatment focus on improving the child's quality of life and independence rather than ensuring admission to an assisted living facility. Choice D is incorrect as early diagnosis and treatment of ASD do not prevent the development of other mental health conditions; however, they can help in identifying and managing such conditions early on.
5. You are creating a teaching plan for a patient with newly diagnosed migraine headaches. Which key item should NOT be included in the teaching plan?
- A. Avoid foods that contain tyramine, such as alcohol and aged cheese.
- B. Avoid drugs such as Tagamet, nitroglycerin, and Nifedipine.
- C. Continue taking estrogen as prescribed by your physician.
- D. A potential side effect of medications is rebound headache.
Correct answer: C
Rationale: The correct answer is C: Continue taking estrogen as prescribed by your physician. Medications such as estrogen supplements may actually trigger a migraine headache attack. Fluctuations in estrogen, such as before or during menstrual periods, pregnancy, and menopause, seem to trigger headaches in many women. Choices A and B are important to include in the teaching plan for a patient with migraines as avoiding foods containing tyramine and certain drugs can help prevent migraine triggers. Choice D is also relevant as it is essential for the patient to be aware of potential side effects of medications, including rebound headaches.
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