Nursing Elites

1. What is the primary function of surfactant in the lungs?

• A. Reduce surface tension
• B. Enhance oxygen absorption
• C. Facilitate carbon dioxide release
• D. Increase lung volume

Correct answer: A

Rationale: The primary function of surfactant in the lungs is to reduce surface tension in the alveoli. This reduction in surface tension prevents lung collapse and allows for easier breathing. It is particularly crucial in premature infants to help with lung expansion. Choice B is incorrect because surfactant primarily affects surface tension, not oxygen absorption. Choice C is incorrect because surfactant's main role is not in facilitating carbon dioxide release. Choice D is incorrect because surfactant does not directly increase lung volume; its main role is in reducing surface tension.

2. Which vitamin deficiency is most associated with night blindness?

• A. Vitamin A
• B. Vitamin B12
• C. Vitamin C
• D. Vitamin D

Correct answer: A

Rationale: The correct answer is Vitamin A. Vitamin A deficiency leads to night blindness because this vitamin is crucial for the formation of rhodopsin, a photopigment in the retina. Rhodopsin is essential for vision in low-light conditions. Vitamin B12 deficiency can lead to anemia and neurological issues but is not directly related to night blindness. Vitamin C deficiency can cause scurvy, affecting connective tissues, but not night vision. Vitamin D deficiency can lead to bone disorders but is not primarily associated with night blindness.

3. A client who had an abdominal hysterectomy is experiencing minimal urine output despite adequate fluid intake. What should the nurse assess first?

• A. The client's bladder for distension.
• B. The IV catheter insertion site.
• C. The patency of the urinary catheter.
• D. The client's vital signs.

Correct answer: C

Rationale: Assessing the patency of the urinary catheter is crucial in this situation. A blocked catheter could be a common cause of decreased urine output following surgery. While checking the IV catheter insertion site (Choice B) is important, it is not the priority in this case. Examining the client's bladder for distension (Choice A) is relevant, but assessing the patency of the catheter takes precedence in resolving the issue of decreased urine output. Monitoring vital signs (Choice D) is a routine nursing task but not the priority when dealing with decreased urine output post-surgery.

4. How does the home care nurse determine that a 78-year-old client is unable to remain in his current residence alone?

• A. The goals set by the client
• B. The learning level of the client
• C. Assessing the home environment
• D. The distractions in the client's home

Correct answer: C

Rationale: The correct answer is assessing the home environment. This process is vital in evaluating whether an elderly client can safely live independently. Factors like safety hazards and the client's ability to handle daily activities are considered during this assessment. Choices A, B, and D are incorrect because determining the client's ability to remain in his residence alone relies more on evaluating the home environment for safety and suitability rather than the client's goals, learning level, or distractions in the home.

5. After a hip replacement surgery, a client is instructed to use an abduction pillow while in bed. What is the primary purpose of this device?

• A. To reduce the risk of blood clots.
• B. To prevent hip dislocation.
• C. To improve circulation in the legs.
• D. To alleviate pain and discomfort.

Correct answer: B

Rationale: The primary purpose of using an abduction pillow after hip replacement surgery is to prevent hip dislocation. The abduction pillow keeps the legs separated, which reduces the risk of hip dislocation by preventing excessive internal rotation and adduction of the hip joint. Choices A, C, and D are incorrect as the main goal of using the abduction pillow is to maintain proper positioning and stability of the hip joint to prevent dislocation, rather than addressing blood clots, circulation, or pain relief.

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