NCLEX-RN
NCLEX RN Practice Questions With Rationale
1. 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.
2. A client is refusing to undergo any more treatments in the hospital and wants to leave against medical advice. When the nurse requests the client to sign an AMA order, the client refuses and leaves. What is the next action of the nurse?
- A. Call security to hold the client until he signs the order
- B. Notify the physician to convince the client to stay
- C. Speak with the client's spouse to persuade him to stay
- D. Allow the client to leave and document the refusal in his chart
Correct answer: D
Rationale: The nurse cannot force the client to stay in the hospital to receive treatment or to sign an AMA order. It is essential to respect the client's autonomy and decision-making capacity. While involving security or pressuring the client through the physician or spouse may seem like options, they are not appropriate in this situation. The nurse should allow the client to leave if they are competent to make that decision, document the refusal in the client's chart to ensure all actions are appropriately documented, and follow institutional policies for patients leaving against medical advice.
3. At the beginning of her shift in a long-term care facility, which of the following clients should a nurse check on first?
- A. A 91-year-old man who needs help eating breakfast
- B. An 86-year-old man who has been incontinent in his bed
- C. An 82-year-old woman who needs IV antibiotics
- D. A 75-year-old man who is recovering from an injury and needs an ice pack
Correct answer: C
Rationale: When prioritizing care in a long-term care facility, the nurse must consider tasks that require their immediate attention and cannot be delegated. Administering IV antibiotics is a critical nursing task that only the nurse can perform, ensuring the timely and correct delivery of medication to the patient. While assisting with breakfast, managing incontinence, and providing an ice pack are important, these tasks can be delegated to other healthcare team members, allowing the nurse to address the client needing IV antibiotics first to ensure effective treatment and patient safety.
4. 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.
5. A client with hyperkalemia may exhibit peaked T waves on an electrocardiogram. This manifestation is an early sign of high potassium levels, but the diagnosis should not be based on this aspect alone. Untreated, hyperkalemia can lead to progressively worsening cardiac instability.
- A. A lumbar puncture takes a sample of cerebrospinal fluid from the back, which will be analyzed by the lab.
- B. The physician will insert a needle at the level of L4-L5 in the spinal cord.
- C. The client should lie flat on their back for a specific period following the procedure.
- D. The risks of the procedure include headache, back pain, and infection.
Correct answer: B
Rationale: A lumbar puncture is performed to obtain cerebrospinal fluid for analysis to investigate various conditions affecting the client. During the procedure, the client is typically positioned on their side or sitting leaning over a table with their back rounded. The physician inserts a needle into the back around the L4-L5 vertebrae to collect the sample. Option A is incorrect because a lumbar puncture does not draw blood but instead collects cerebrospinal fluid. Option C is incorrect as the client should not necessarily lie flat for 24 hours post-procedure. Option D is incorrect as the common risks of a lumbar puncture include headache, back pain, and potential infection, not nausea, rash, or hypotension.
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