what is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space
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Nursing Elites

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?

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. A client with heart failure is prescribed a low-sodium diet. The nurse notices the client's meal tray contains high-sodium foods. What action should the nurse take?

Correct answer: B

Rationale: The correct action for the nurse to take in this situation is to replace the high-sodium meal with a low-sodium option. This immediate intervention ensures that the client adheres to the prescribed low-sodium diet, crucial for managing heart failure and preventing fluid retention. Educating the client (Choice A) about the diet is important but not as urgent as ensuring they receive the correct meal. Reporting the error to the dietary department (Choice C) can be done after addressing the immediate issue. Encouraging the client to avoid high-sodium foods (Choice D) is not as effective as replacing the current meal with a suitable alternative.

3. The nurse is caring for a client who is NPO (nothing by mouth) due to a small bowel obstruction. Which nursing intervention is most important?

Correct answer: B

Rationale: Providing frequent oral care is crucial when a client is NPO to ensure comfort and prevent drying of the oral mucosa. In this situation, the priority is maintaining oral hygiene to prevent complications such as oral mucosa breakdown. Monitoring bowel sounds may be important in assessing bowel activity, but it is not the priority when the client is NPO due to a small bowel obstruction. Encouraging ambulation can be beneficial for other conditions, but in this case, oral care takes precedence. Measuring abdominal girth is more relevant for assessing abdominal distention, which is not the priority when the client is NPO. Therefore, the most important nursing intervention is to provide frequent oral care.

4. The nurse assigns an unlicensed assistive personnel (UAP) to feed a client who is at risk for aspiration. What action should the nurse take to ensure safety?

Correct answer: C

Rationale: Observing the UAP's ability to implement precautions during feeding is crucial to ensuring the client's safety, especially when there is a risk of aspiration. This hands-on observation allows the nurse to assess whether the UAP is competent in handling the feeding procedure safely. Informing the UAP about suction availability (Choice A) is important but does not directly assess the UAP's ability during feeding. Instructing the UAP to notify the nurse if the client chokes (Choice B) focuses on reactive measures rather than proactive supervision. Asking about previous experience (Choice D) does not provide real-time information on the UAP's current competency in handling the specific feeding task for the at-risk client.

5. A client is admitted with a diagnosis of congestive heart failure (CHF). Which intervention is most important to include in the plan of care?

Correct answer: A

Rationale: The correct answer is A: Restrict fluid intake. Fluid restriction is crucial in the management of congestive heart failure (CHF) as it helps prevent fluid overload, which can exacerbate CHF symptoms. Choices B, C, and D are incorrect. Providing a high-sodium diet would worsen fluid retention and increase the workload of the heart. Encouraging vigorous exercise can strain the heart further in CHF patients. Administering bronchodilators is not the priority intervention for CHF.

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