HESI LPN
Adult Health 2 Exam 1
1. What is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space?
- A. Filtration
- B. Diffusion
- C. Osmosis
- D. Active transport
Correct answer: C
Rationale: The correct answer is C: Osmosis. Osmosis is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space to maintain cellular balance. In osmosis, water moves across a semi-permeable membrane from an area of low solute concentration (hypotonic) to an area of high solute concentration (hypertonic). This process helps regulate the water content inside cells. Choices A, B, and D are incorrect. Filtration involves the movement of solutes and solvents through a membrane due to a pressure difference, diffusion is the movement of solutes from an area of high concentration to low concentration, and active transport requires energy to move substances against their concentration gradient.
2. Which nursing activity is within the scope of practice for the practical nurse?
- A. Complete an admission assessment in the normal newborn nursery
- B. Discontinue a central venous catheter that has become dislodged
- C. Observe a client rotate the subcutaneous site for an insulin pump
- D. Monitor a continuous narcotic epidural for a postoperative client
Correct answer: C
Rationale: The correct answer is C: 'Observe a client rotate the subcutaneous site for an insulin pump.' This activity is within the scope of practice for a practical nurse as it involves observing and ensuring proper technique for using an insulin pump, which aligns with their training and responsibilities. Choices A, B, and D are beyond the typical scope of practice for a practical nurse. Completing an admission assessment for a newborn nursery is usually performed by a registered nurse. Discontinuing a dislodged central venous catheter and monitoring a narcotic epidural require advanced skills and knowledge, usually carried out by registered nurses or advanced practice nurses.
3. What is the most important aspect of colostomy care to teach the client?
- A. Change the colostomy bag daily
- B. Irrigate the colostomy daily
- C. Avoid high-fiber foods
- D. Assess the stoma for color and swelling
Correct answer: D
Rationale: The most crucial aspect of colostomy care to teach the client is to assess the stoma for color and swelling. This is essential to detect early signs of complications such as ischemia or infection. Changing the colostomy bag daily is important but not as critical as assessing the stoma for complications. Irrigating the colostomy daily is not a standard recommendation and should be performed based on healthcare provider's instructions. While avoiding high-fiber foods may be beneficial for some individuals with a colostomy, it is not the most important aspect of care compared to monitoring the stoma for complications.
4. A client reports feeling anxious and having trouble sleeping lately. What non-pharmacological intervention should the nurse suggest first?
- A. Starting an exercise program
- B. Keeping a sleep diary
- C. Practicing relaxation techniques before bed
- D. Using sleep-inducing medications at night
Correct answer: C
Rationale: The correct non-pharmacological intervention the nurse should suggest first for a client experiencing anxiety and sleep issues is practicing relaxation techniques before bed. Relaxation techniques like deep breathing, progressive muscle relaxation, or mindfulness meditation can help reduce anxiety levels and promote better sleep naturally. Starting an exercise program (Choice A) can be beneficial but may not provide immediate relief for anxiety and sleep problems. Keeping a sleep diary (Choice B) can help identify patterns but does not directly address anxiety. Using sleep-inducing medications (Choice D) should be considered only after non-pharmacological interventions have been tried.
5. A healthcare provider is conducting a health education session about the prevention of type 2 diabetes. What lifestyle modification should be emphasized?
- A. Increasing physical activity
- B. Reducing dietary sugar intake
- C. Regular health screenings
- D. All of the above
Correct answer: D
Rationale: To effectively prevent type 2 diabetes, individuals should focus on a combination of lifestyle modifications. Increasing physical activity helps maintain a healthy weight and improves insulin sensitivity. Reducing dietary sugar intake can lower the risk of developing diabetes by managing blood sugar levels. Regular health screenings are crucial for early detection and timely intervention. Emphasizing all these modifications together provides a comprehensive approach to diabetes prevention. Choices A, B, and C are all important components of a healthy lifestyle that can contribute to reducing the risk of type 2 diabetes.
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