NCLEX-PN
NCLEX PN Exam Cram
1. At what age will vision be 20/20 in children?
- A. 4 years old
- B. 5 years old
- C. 6 years old
- D. 7 years old
Correct answer: C
Rationale: The correct answer is 6 years old. At this age, children typically have the potential for 20/20 vision. This is considered the standard age for achieving optimal vision clarity. Choices A, B, and D are incorrect as they are not typically associated with the age at which children achieve 20/20 vision.
2. Why is starting a low CHO diet a contraindication for a client with renal insufficiency?
- A. As long as the client eats a minimum of 30g of CHO/day, there should be no problem.
- B. The client's clinical condition is a contraindication to starting a low CHO diet.
- C. Calcium supplements should be utilized to prevent the development of osteoporosis while on a low CHO diet.
- D. As long as the client eats foods that are high biologic protein sources, a low CHO diet can be followed.
Correct answer: B
Rationale: A client with renal insufficiency should not start a low CHO diet because it could result in an increased renal solute load. Clients with renal or liver disease require protein control in their diet to prevent complications. Proteins used must be of high biologic value, and protein intake is usually weight-based. Protein levels may be adjusted based on the client's clinical condition. A minimum level of carbohydrates is needed in the diet to spare protein. Vitamin and mineral supplements might be needed for clients with liver failure. The dietician plays a crucial role in calculating specific nutrient requirements for these clients and monitoring outcomes in conjunction with the healthcare team. Choice A is incorrect because simply consuming a minimum amount of carbohydrates does not address the issue of increased renal solute load. Choice C is incorrect as calcium supplements are not the primary concern when considering a low CHO diet for a client with renal insufficiency. Choice D is incorrect as the focus should be on the contraindication of a low CHO diet for a client with renal insufficiency rather than just high biologic protein sources.
3. One day postoperative, the client complains of dyspnea, and his respiratory rate (RR) is 35, slightly labored, and there are no breath sounds in the lower-right base. The nurse should suspect:
- A. cor pulmonale.
- B. atelectasis.
- C. pulmonary embolism.
- D. cardiac tamponade.
Correct answer: B
Rationale: The correct answer is atelectasis. The absence of breath sounds in the lower-right base is a key finding in atelectasis, which occurs when a portion of the lung collapses. The other symptoms such as dyspnea and increased respiratory rate could be present in various pulmonary conditions. Cor pulmonale is typically associated with chronic lung disease, pulmonary embolism presents with sudden onset dyspnea and chest pain, and cardiac tamponade manifests with Beck's triad of hypotension, distended neck veins, and muffled heart sounds.
4. A pregnant Asian client who is experiencing morning sickness wants to take ginger to relieve the nausea. Which of the following responses by the nurse is appropriate?
- A. "I will call your physician to see if we can start some ginger."?
- B. "We don't use home remedies in this clinic."?
- C. "Herbs are not as effective as regular medicines."?
- D. "Just eat some dry crackers instead."?
Correct answer: A
Rationale: The correct response is to offer to consult with the physician regarding the use of ginger, showing cultural sensitivity. Ginger is known to help relieve nausea, especially in pregnancy. Choice A is the correct answer as it respects the client's preference for a home remedy and involves the physician in the decision-making process. Choice B dismisses the client's preference for a home remedy without exploring its potential benefits. Choice C makes a generalized statement discrediting the effectiveness of herbs, which is not evidence-based and disregards the client's beliefs. Choice D offers an alternative without addressing the client's specific request, failing to acknowledge the client's autonomy and cultural background.
5. A nurse reviewed the arterial blood gas reading of a 25-year-old male. The nurse should be able to conclude the patient is experiencing which of the following conditions?
- A. metabolic acidosis
- B. respiratory acidosis
- C. metabolic alkalosis
- D. respiratory alkalosis
Correct answer: D
Rationale: The correct answer is respiratory alkalosis. In respiratory alkalosis, there is an elevated pH and low carbon dioxide levels (PaCO2 < 35 mmHg). In the given arterial blood gas reading, the patient's pH is 7.41 (within normal range), PaCO2 is 29 mmHg (below normal range), indicating respiratory alkalosis. The bicarbonate level is normal (25 mEq/l), ruling out metabolic acidosis or alkalosis. The low PaO2 (54 mmHg) may indicate hypoxemia, but it is not directly related to the acid-base disorder being assessed. Metabolic acidosis (choice A) is characterized by low pH and low bicarbonate levels, which are not present in this case. Respiratory acidosis (choice B) is indicated by low pH and high PaCO2 levels, which also do not match the provided data. Metabolic alkalosis (choice C) is defined by high pH and high bicarbonate levels, which are not seen in this scenario.
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