Correct Answer: D

Rationale: The correct intervention for a client with a stage 3 pressure injury is to apply a moisture barrier ointment. This helps protect the skin, maintain moisture balance, and promote healing. Choice A is incorrect because povidone-iodine solution can be too harsh for wound care. Choice B is incorrect as hydrogen peroxide can be cytotoxic to healing tissue. Choice C is important for preventing pressure injuries but is not a direct intervention for a stage 3 wound.

Correct Answer: A

Rationale: The correct answer is to administer oxygen. Post-surgery, confusion in a patient could be due to hypoxia, a condition where the body is deprived of an adequate oxygen supply. Administering oxygen helps address hypoxia promptly, improving oxygen levels in the body and potentially resolving the confusion. Repositioning the patient, checking oxygen saturation, and performing a neurological exam may be important interventions but addressing hypoxia with oxygen administration takes precedence as the priority action.

Correct Answer: A

Rationale: A glomerular filtration rate of 14 mL/minute indicates severe kidney dysfunction, necessitating hemodialysis. The other options, BUN of 16 mg/dL, serum magnesium of 1.8 mg/dL, and serum phosphorus of 4.0 mg/dL, are within normal ranges and do not serve as indications for hemodialysis.

Correct Answer: A

Rationale: The most crucial nursing action for a patient post-surgery is to monitor vital signs. Monitoring vital signs helps in detecting early signs of complications such as hemorrhage, shock, or infection. While monitoring the surgical site is important for assessing wound healing and signs of infection, it is secondary to monitoring vital signs. Checking blood pressure and oxygen saturation are also important, but they are components of monitoring vital signs.

Correct Answer: B

Rationale: The correct answer is B. Limiting protein intake is crucial for clients with chronic kidney disease as it helps prevent further kidney damage. Increasing intake of potassium-rich foods (choice A) is not recommended for clients with kidney disease as high potassium levels can be harmful. Avoiding foods high in phosphorus (choice C) is important, but limiting protein intake is a higher priority. Increasing dairy product intake (choice D) is not ideal for clients with kidney disease as they may need to monitor their phosphorus intake from such foods.