NCLEX-RN
NCLEX RN Exam Review Answers
1. A 27-year-old writer is admitted for the second time accompanied by his wife. He is demanding, arrogant, talks fast, and is hyperactive. Initially the nurse should plan this for a manic client:
- A. Set realistic limits to the client's behavior
- B. Repeat verbal instructions as often as needed
- C. Allow the client to express feelings to relieve tension
- D. Assign staff to be with the client at all times to help maintain control
Correct answer: A
Rationale: For a manic client who is hyperactive and may engage in injurious activities, setting realistic limits to the client's behavior is crucial to ensure safety. A quiet environment with firm and consistent limits helps in managing the client's behavior effectively. While repeating verbal instructions can be helpful due to the client's distractibility, it is not the priority compared to setting limits for safety concerns. Allowing the client to express feelings is important, but it should be done through non-destructive methods. Assigning staff to be with the client at all times is not realistic or feasible in the clinical setting and does not address the core issue of managing the client's behavior and ensuring safety.
2. A client has started sweating profusely due to intense heat. His overall luid volume is low and he has developed electrolyte imbalance. This client is most likely suffering from:
- A. Malignant hyperthermia
- B. Heat exhaustion
- C. Heat stroke
- D. Heat cramps
Correct answer: B
Rationale: Heat exhaustion occurs when a person has enough diaphoresis that he becomes dehydrated. Intense sweating can cause both luid and electrolyte imbalances. Untreated heat exhaustion can lead to heat stroke, which results in organ damage, loss of consciousness, or death.
3. Mrs. O is seen for follow-up after an episode of acute pancreatitis. Her physician orders a serum amylase level and the result is 200 U/L. Which of the following is a potential cause of this result?
- A. The client is pregnant
- B. The client has hypertension
- C. The client is in renal failure
- D. The client has pancreatitis
Correct answer: D
Rationale: An elevated serum amylase level after pancreatitis may indicate another attack of the condition. It is common to order serum amylase as part of routine follow-up after pancreatitis. Elevated levels can also be seen in related gastrointestinal conditions like cholecystitis or an intestinal blockage. Therefore, in this case, the most likely cause of the elevated serum amylase level is a recurrence or ongoing pancreatitis. The other options, including pregnancy, hypertension, and renal failure, are not typically associated with an elevated serum amylase level in the context of follow-up after acute pancreatitis.
4. If a healthcare professional prevents intentional harm from occurring to a patient, which ethical principle is being supported?
- A. Beneficence
- B. Nonmaleficence
- C. Justice
- D. Fidelity
Correct answer: B
Rationale: The correct answer is Nonmaleficence. Nonmaleficence is the ethical principle that emphasizes the obligation to avoid causing harm intentionally. In this scenario, by preventing intentional harm to a patient, the healthcare professional is upholding the principle of nonmaleficence. Beneficence, although important, focuses on doing good and promoting well-being rather than solely preventing harm. Justice relates to fairness and equality in resource distribution, while fidelity involves being faithful and keeping promises, which are not directly applicable to the situation of preventing intentional harm to a patient.
5. 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.
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