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. The nurse is caring for a client who is postoperative following a hip replacement. Which intervention is most important to prevent dislocation of the prosthesis?

Correct answer: B

Rationale: Maintaining hip abduction with pillows is the most important intervention to prevent dislocation of the hip prosthesis postoperatively. This position helps keep the hip joint stable and prevents excessive internal rotation, which can lead to dislocation. Keeping the client in a low Fowler's position (Choice A) does not provide the necessary support and stability for the hip joint. While early ambulation (Choice C) is important for preventing complications such as blood clots and promoting circulation, it is not the most crucial intervention for preventing dislocation. Placing the client in a prone position (Choice D) can be harmful and increase the risk of dislocation.

3. During a home visit, a nurse finds that an elderly client is having trouble remembering to take their medications. What is the best intervention?

Correct answer: D

Rationale: The best intervention when an elderly client is having trouble remembering to take their medications is to implement all of the above options. Setting up a pill organizer helps in organizing and remembering medication schedules. Involving family members in care ensures additional support and reminders. Arranging for a home health aide can provide direct assistance and supervision. Implementing all these strategies together can significantly improve medication adherence, especially in clients with memory issues. Each option plays a crucial role in addressing different aspects of the problem, making 'Implement all of the above' the most comprehensive and effective choice.

4. Prior to administering morphine sulfate (Morphine), the nurse takes the client's vital signs. Based on which finding should the nurse withhold administration of the medication until the charge nurse is notified?

Correct answer: C

Rationale: The correct answer is C because a low respiratory rate is a critical concern when administering opioids like morphine, as they can suppress breathing. A high pulse rate (choice B) and high blood pressure (choice D) are not immediate contraindications for administering morphine. A slightly elevated temperature (choice A) may not necessarily require withholding morphine.

5. The nurse is caring for a client who has just returned from surgery with an indwelling urinary catheter in place. What is the most important assessment for the nurse to make?

Correct answer: C

Rationale: The most important assessment for the nurse to make in this situation is to measure the urine output. This assessment is crucial in monitoring kidney function and fluid balance after surgery. While checking for catheter patency is important, it is not as critical as measuring urine output. Assessing the color of the urine can provide some information about kidney function, but measuring output gives a more accurate assessment. Ensuring the catheter tubing is secure is essential to prevent dislodgement but is not the most critical assessment to make at this time.

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