Nursing Elites

1. Prolonged exposure to high concentrations of supplemental oxygen over several days can cause which pathophysiological effect?

• A. Reduced cardiac output
• B. Disrupted surfactant production
• C. Hyperactivity of alveoli
• D. Increased oxygen carrying capacity

Correct answer: B

Rationale: Corrected Rationale: Prolonged exposure to high oxygen concentrations can disrupt the production of surfactant in the lungs, leading to atelectasis and other lung complications. Surfactant is essential for maintaining lung compliance and preventing alveolar collapse. Reduced cardiac output (Choice A) is not directly associated with prolonged oxygen exposure. Hyperactivity of alveoli (Choice C) is not a recognized consequence of high oxygen levels. Increased oxygen carrying capacity (Choice D) is not a pathophysiological effect of prolonged high oxygen exposure.

2. A client with chronic liver disease is prescribed lactulose. Which laboratory value should the nurse monitor to evaluate the effectiveness of this medication?

• A. Bilirubin level
• B. Serum ammonia level
• C. Serum potassium level
• D. Albumin level

Correct answer: B

Rationale: The correct answer is B: Serum ammonia level. Lactulose is used to lower serum ammonia levels in clients with chronic liver disease, particularly in cases of hepatic encephalopathy. Monitoring serum ammonia levels is crucial to evaluate the effectiveness of lactulose in managing hepatic encephalopathy. Choices A, C, and D are incorrect because they are not directly related to the action or evaluation of lactulose in chronic liver disease.

3. A client with hypothyroidism is prescribed levothyroxine. What instruction should the nurse provide?

• A. Take the medication in the morning before eating.
• B. Take the medication with a full glass of water.
• C. Take the medication with food to avoid nausea.
• D. Take the medication only when symptoms worsen.

Correct answer: A

Rationale: The correct answer is A: 'Take the medication in the morning before eating.' Levothyroxine should be taken on an empty stomach in the morning for optimal absorption. Choice B is incorrect because while taking medication with water is generally recommended, levothyroxine specifically needs to be taken on an empty stomach. Choice C is incorrect as taking levothyroxine with food can interfere with its absorption. Choice D is incorrect as levothyroxine should be taken regularly as prescribed, not only when symptoms worsen.

4. A pregnant client complains of heartburn. What instruction should the nurse provide?

• A. Eat spicy food to help digestion.
• B. Eat small meals throughout the day to avoid a full stomach.
• C. Drink carbonated beverages to ease digestion.
• D. Avoid drinking fluids after meals.

Correct answer: B

Rationale: The correct instruction for a pregnant client experiencing heartburn is to eat small meals throughout the day to avoid a full stomach. This helps prevent the stomach from becoming overly full, reducing the likelihood of heartburn during pregnancy. Choices A, C, and D are incorrect. Eating spicy food can exacerbate heartburn, carbonated beverages may trigger heartburn due to gas, and avoiding fluids after meals does not directly address the issue of heartburn.

5. What assessment is most important for the nurse to perform for a client with dehydration receiving IV fluids?

• A. Monitor the client’s electrolyte levels.
• B. Check the client’s urine output hourly.
• C. Assess the client’s skin turgor regularly.
• D. Monitor the client’s blood pressure every 15 minutes.

Correct answer: A

Rationale: The correct answer is to monitor the client’s electrolyte levels. When a client is receiving IV fluids for dehydration, it is crucial to assess their electrolyte levels regularly. Dehydration can lead to imbalances in electrolytes, especially sodium and potassium, which are essential for maintaining fluid balance and proper organ function. Checking urine output (Choice B) is important but not as critical as monitoring electrolyte levels. Assessing skin turgor (Choice C) is an indirect method of assessing dehydration but does not provide specific information about electrolyte imbalances. Monitoring blood pressure (Choice D) is important but not the most critical assessment in this scenario as electrolyte imbalances can have a more direct impact on the client's condition.

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