Correct Answer: D

Rationale: The correct action to prevent infection when caring for a client with a new peripheral IV catheter is to change the IV site every 48 to 72 hours. Shaving the hair at the insertion site can actually increase the risk of infection by causing microabrasions in the skin. While cleansing the site with povidone-iodine is important before insertion, it is not necessary to continue doing so once the IV is in place. Wearing sterile gloves when changing the dressing is crucial for maintaining aseptic technique but does not directly prevent infection related to the IV site itself.

Correct Answer: A

Rationale: Assessing the surgical site is crucial in identifying early signs of infection post-surgery. Changes such as redness, swelling, warmth, or drainage may indicate an infection developing. While monitoring vital signs and fever are important in infection assessment, they are general indicators and may not show localized signs at the surgical site. Checking for abnormal breath sounds is more relevant when assessing respiratory issues rather than infection at the surgical site.

Correct Answer: C

Rationale: The correct answer is to encourage weight-bearing exercises to prevent bone loss in clients with osteoporosis. Weight-bearing exercises help to strengthen bones and reduce the risk of fractures. Increasing calcium intake (Choice A) is important for bone health but is not the priority intervention for preventing bone loss in osteoporosis. Applying heat to affected joints (Choice B) may help with stiffness but does not address the underlying bone loss in osteoporosis. Limiting fluid intake (Choice D) is not relevant to managing osteoporosis and preventing bone loss.

Correct Answer: A

Rationale: A glomerular filtration rate (GFR) of 14 mL/min is significantly low, indicating poor kidney function and the need for hemodialysis to remove waste products effectively. BUN, serum magnesium, and serum phosphorus levels are important in assessing kidney function and electrolyte balance but are not direct indicators for the initiation of hemodialysis. BUN (blood urea nitrogen) reflects the kidney's ability to filter waste products, serum magnesium levels are important for muscle and nerve function, and serum phosphorus levels are vital for bone health.

Correct Answer: A

Rationale: Placing a pillow between the client's legs is the correct action to prevent dislocation of the prosthesis after hip arthroplasty. This positioning helps maintain proper alignment and stability of the hip joint, reducing the risk of dislocation. Placing the client in a high Fowler's position (choice B) is not recommended after hip arthroplasty as it may strain the hip joint. Maintaining the client in a side-lying position (choice C) or keeping the client's legs elevated (choice D) does not provide the same level of support and alignment as placing a pillow between the legs.