NCLEX-RN
NCLEX RN Practice Questions With Rationale
1. Who among the following individuals wrote a medical code of ethics?
- A. Hammurabi
- B. Thomas Percival
- C. Hippocrates
- D. All of the above
Correct answer: D
Rationale: All of the above individuals contributed to the development of medical ethics. Hammurabi created the earliest known code around 2500 BC. Hippocrates, known for the principle 'Do no harm,' emphasized ethical practices in medicine. Thomas Percival, a physician interested in sociological medicine, authored a Code of Medical Ethics in 1803, which influenced modern medical ethics. Therefore, the correct answer is 'All of the above.' Choices A, B, and C are incorrect because each of them individually wrote a medical code of ethics, making 'All of the above' the most inclusive and accurate answer.
2. The key to the prevention of a pandemic influenza is:
- A. Early detection
- B. Early antibiotic treatment
- C. Vaccination of at-risk populations
- D. Isolation of suspected cases
Correct answer: A
Rationale: The key to preventing a pandemic influenza is early detection. Detecting influenza cases early allows for timely public health responses to limit the spread of the virus. Early detection helps in implementing measures such as isolation, treatment, and vaccination to prevent the development of a full-blown pandemic. Antibiotics are not effective against influenza viruses, so early antibiotic treatment is not the key to prevention. While vaccination of at-risk populations is important in controlling the spread of influenza, early detection is crucial as it allows for timely implementation of vaccination strategies. Isolation of suspected cases is a containment measure rather than a prevention strategy; the key to prevention lies in early detection to stop the spread before it becomes a pandemic.
3. A client with adrenal insufficiency has a potassium level of 7.2 mEq/L. Which of the following signs or symptoms might the client exhibit with this result?
- A. Peaked T waves on the ECG
- B. Muscle spasms
- C. Constipation
- D. A prominent U wave on the ECG
Correct answer: A
Rationale: A client with hyperkalemia may exhibit peaked T waves on an electrocardiogram. This manifestation is an early sign of high potassium levels, but diagnosis should not be based on this aspect alone. Untreated, hyperkalemia can lead to progressively worsening cardiac instability. Muscle spasms (Choice B) are more commonly associated with hypocalcemia. Constipation (Choice C) is not a typical sign of hyperkalemia. A prominent U wave on the ECG (Choice D) is associated with hypokalemia, not hyperkalemia.
4. An occupational health nurse works at a manufacturing plant where there is potential exposure to inhaled dust. Which action, if recommended by the nurse, will be most helpful in reducing the incidence of lung disease?
- A. Treat workers with pulmonary fibrosis.
- B. Teach about symptoms of lung disease.
- C. Require the use of protective equipment.
- D. Monitor workers for coughing and wheezing.
Correct answer: C
Rationale: Prevention of lung disease requires the use of appropriate protective equipment such as masks to reduce exposure to inhaled dust, which is a significant risk factor for lung disease. Teaching about symptoms of lung disease, treating workers with pulmonary fibrosis, and monitoring for coughing and wheezing are important actions for early recognition and treatment of lung disease. However, the most effective strategy to prevent lung damage in this scenario is to require the use of protective equipment to minimize exposure to harmful substances.
5. A patient with Addison's disease asks a nurse for nutrition and diet advice. Which of the following diet modifications is not recommended?
- A. A diet high in grains
- B. A diet with adequate caloric intake
- C. A high protein diet
- D. A restricted sodium diet
Correct answer: D
Rationale: For a patient with Addison's disease, a restricted sodium diet is not recommended. These patients require normal dietary sodium to prevent excess fluid loss. Patients with primary adrenal insufficiency (Addison disease) should have ample access to salt because of the salt wasting that occurs if their condition is untreated. Therefore, a diet high in grains, a diet with adequate caloric intake, and a high protein diet are all recommended for patients with Addison's disease to support their nutritional needs and overall health. However, restricting sodium can be detrimental for these patients due to the nature of their condition.
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