Correct Answer: A

Rationale: The correct answer is A: Monitor electrolyte levels and administer potassium as needed. Patients on diuretic therapy are at risk of electrolyte imbalances, particularly low potassium levels. Monitoring electrolytes and administering potassium as needed are crucial nursing interventions to prevent imbalances. Choice B is incorrect because restricting fluid intake and providing a low-sodium diet are not typically indicated for patients on diuretic therapy. Choice C is incorrect as encouraging oral fluids and increasing dietary potassium can exacerbate electrolyte imbalances in patients on diuretics. Choice D is incorrect as providing high-sodium foods would worsen electrolyte balance issues in patients on diuretic therapy.

Correct Answer: B

Rationale: The correct answer is to limit phosphorus and potassium intake for a client with chronic kidney disease. In renal insufficiency, the kidneys struggle to excrete these minerals, leading to their buildup in the blood, which can be harmful. Limiting phosphorus and potassium intake helps prevent further kidney damage and manage the progression of chronic kidney disease. Encouraging protein-rich foods (Choice C) may be counterproductive as excessive protein intake can burden the kidneys. Increasing potassium-rich foods (Choice A) is incorrect as high potassium levels can be detrimental in kidney disease. Increasing calcium-rich foods (Choice D) is not typically a focus in dietary teaching for chronic kidney disease unless there is a specific deficiency or need, as excessive calcium intake can also be harmful to kidney function.

Correct Answer: C

Rationale: Placing a pillow between the legs is essential post-total hip arthroplasty to prevent adduction of the hip joint, reducing the risk of dislocation. Choices A, B, and D are incorrect. Using a walker while walking is encouraged for support and stability. Keeping the hip flexed at 90° while sitting can increase the risk of hip dislocation. Crossing legs at the ankles when sitting may also lead to hip dislocation.

Correct Answer: B

Rationale: The correct next step when a client develops phlebitis while receiving IV fluids is to remove the catheter and place it in another site. Phlebitis is inflammation of a vein, and leaving the catheter in the same site can lead to further complications. Monitoring the site for further swelling, as in choice A, is not enough as the source of inflammation needs to be removed. Choice C, reducing the flow rate, may not address the underlying issue causing phlebitis. Switching to oral hydration, as in choice D, is not necessary for addressing phlebitis related to IV fluid administration.

Correct Answer: A

Rationale: The correct answer is A: Shortness of breath and weight gain. Early signs of heart failure typically manifest as shortness of breath due to fluid accumulation in the lungs and weight gain due to fluid retention in the body. Choices B, C, and D are incorrect. Fatigue and chest pain are symptoms commonly associated with heart conditions but are not specific early signs of heart failure. Nausea and vomiting are not typically early signs of heart failure. Cough can be a symptom of heart failure, but it is usually associated with other symptoms like shortness of breath rather than being an isolated early sign. Elevated blood pressure is not an early sign of heart failure; in fact, heart failure is more commonly associated with low blood pressure.