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. While assessing several clients in a long-term health care facility, which client is at the highest risk for developing decubitus ulcers?

• A. A 79-year-old malnourished client on bed rest
• B. An obese client who uses a wheelchair
• C. A client who had 3 episodes of incontinent diarrhea
• D. An 80-year-old ambulatory diabetic client

Correct answer: A

Rationale: The correct answer is A: A 79-year-old malnourished client on bed rest. This client is at the highest risk for developing decubitus ulcers due to being malnourished and on bed rest, leading to decreased mobility and poor nutrition. This combination puts the client at significant risk for skin breakdown and pressure ulcers. Choice B is incorrect because although obesity is a risk factor for developing pressure ulcers, immobility and poor nutrition are higher risk factors. Choice C is incorrect as incontinence can contribute to skin breakdown but is not as high a risk factor as immobility and poor nutrition. Choice D is incorrect as an ambulatory client, even if diabetic, has better mobility than a bedridden client and is at lower risk for developing decubitus ulcers.

3. A client receiving codeine for pain every 4 to 6 hours over 4 days. Which assessment should the nurse perform before administering the next dose?

• A. Auscultate the bowel sounds.
• B. Palpate the ankles for edema.
• C. Observe the skin for bruising.
• D. Measure the body temperature.

Correct answer: A

Rationale: The correct answer is A: Auscultate the bowel sounds. Codeine is known to cause constipation, so it is essential to assess bowel sounds before administering another dose to monitor for potential constipation or bowel motility issues. Palpating the ankles for edema (Choice B) is not directly related to codeine use or its side effects. Observing the skin for bruising (Choice C) is important but not specifically associated with codeine administration. Measuring body temperature (Choice D) is not a priority assessment related to codeine use; monitoring for constipation is more critical in this case.

4. Which client is at greatest risk for developing delirium?

• A. An adult client who cannot sleep due to pain.
• B. An older client who attempted suicide 1 month ago.
• C. A young adult taking antipsychotic medications twice daily.
• D. A middle-aged woman using supplemental oxygen.

Correct answer: B

Rationale: The correct answer is B. Older adults who have attempted suicide are at higher risk for developing delirium, especially in the context of underlying mental health conditions. Choice A is incorrect as sleep disturbances due to pain may lead to discomfort but not necessarily delirium. Choice C is incorrect as taking antipsychotic medications, if managed well, does not inherently increase the risk of delirium. Choice D is incorrect as using supplemental oxygen alone does not significantly increase the risk of developing delirium.

5. A client with deep vein thrombosis (DVT) is prescribed warfarin. What lab value should the nurse review before administering the medication?

• A. Prothrombin time (PT)
• B. Hemoglobin and hematocrit (H&H)
• C. International Normalized Ratio (INR)
• D. Partial thromboplastin time (PTT)

Correct answer: C

Rationale: The correct answer is C: International Normalized Ratio (INR). Before administering warfarin to a client with deep vein thrombosis, the nurse should review the INR to ensure the client is within the therapeutic range. INR is specifically monitored for patients on warfarin therapy to assess the clotting ability of the blood. Choices A, B, and D are incorrect as they are not the primary lab value used to monitor warfarin therapy. Prothrombin time (PT) is used to measure how long blood takes to clot. Hemoglobin and hematocrit (H&H) assess for anemia and the blood's oxygen-carrying capacity. Partial thromboplastin time (PTT) is used to monitor heparin therapy, not warfarin.

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