Nursing Elites

1. Which statement best conveys an aspect of the role of cerebrospinal fluid (CSF)?

• A. CSF provides immune protection to the brain and spinal cord by serving as a physical barrier.
• B. CSF cushions the brain and spinal cord, protecting them from injury.
• C. CSF plays a limited role in the exchange of nutrients and waste products between the blood and brain.
• D. CSF functions primarily as a medium for the transmission of nerve impulses.

Correct answer: B

Rationale: The correct answer is B. Cerebrospinal fluid primarily cushions the brain and spinal cord, protecting them from injury. Choice A is incorrect because while CSF contributes to the brain's immune environment, its main role is not providing immune protection as a physical barrier. Choice C is incorrect because CSF has a significant role in the exchange of nutrients and waste products, rather than a limited one. Choice D is incorrect as CSF is not primarily a medium for nerve impulse transmission, but rather serves as a protective and supportive fluid.

2. A patient is receiving oral nystatin suspension for a fungal infection of the mouth. Which of the following adverse effects is most likely to be experienced with this form of nystatin?

• A. Local irritation
• B. Burning
• C. Nausea
• D. Urinary urgency

Correct answer: A

Rationale: The correct answer is A: Local irritation. When using oral nystatin suspension for a fungal infection of the mouth, local irritation is the most likely adverse effect that a patient may experience. Nystatin is generally well-tolerated, but some patients may develop local irritation, such as mouth or throat irritation. Choices B, C, and D are less likely adverse effects of oral nystatin suspension. Burning, nausea, and urinary urgency are not commonly associated with nystatin use for a fungal infection of the mouth.

3. Which of the following stores electrolytes and acts as an electrolyte pool?

• A. Brain - Kidneys
• B. Bone - Nails
• C. Bone - Liver
• D. Liver - Pancreas

Correct answer: B

Rationale: Bones store electrolytes and act as a reservoir, maintaining a balance of essential minerals like calcium and phosphate. The correct pair in this context is 'Bone - Nails.' Choices A, C, and D are incorrect because the brain, kidneys, liver, and pancreas perform other functions in the body and are not primarily responsible for storing electrolytes.

4. A nurse practitioner is assessing a 7-year-old boy who has been brought to the clinic by his mother, who is concerned about her son's increasingly frequent, severe headaches. Which of the nurse's questions is least likely to yield data that will confirm or rule out migraines as the cause of his problem?

• A. Does your son experience nausea or vomiting when he has a headache?
• B. Does your son have a history of recent head injury?
• C. Does your son become sensitive to light when he has a headache?
• D. Does anyone in your family have a history of migraines?

Correct answer: B

Rationale: Asking about a history of recent head injury is less likely to yield data relevant to confirming or ruling out migraines. Migraines are often associated with symptoms like nausea, vomiting, sensitivity to light, and a family history of migraines. While head injuries can cause headaches, the focus of the assessment in this case should be on symptoms more specific to migraines to guide the diagnosis and management.

5. A client with cystic fibrosis is admitted with a pulmonary exacerbation. Which intervention should the nurse prioritize?

• A. Administer a high-calorie, high-protein diet.
• B. Initiate airway clearance techniques.
• C. Encourage the client to maintain an active lifestyle.
• D. Monitor for signs of respiratory distress.

Correct answer: B

Rationale: During a pulmonary exacerbation in cystic fibrosis, the priority intervention is to initiate airway clearance techniques. These techniques help clear mucus from the airways, improving ventilation and reducing the risk of respiratory complications. Administering a high-calorie, high-protein diet is beneficial for overall nutrition but is not the priority during an exacerbation. Encouraging an active lifestyle is important for long-term health but does not address the immediate need for managing exacerbations. Monitoring for signs of respiratory distress is important, but initiating airway clearance techniques takes precedence in the management of pulmonary exacerbations in cystic fibrosis.

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