Correct Answer: B

Rationale: Postural drainage is a technique used to help remove secretions from specific lung segments. For left lower atelectasis, placing the client in the right lateral Trendelenburg position is most effective. This position helps target the affected area, using gravity to assist in drainage. Placing the client in a supine or low Fowler's position (Choice A) may not effectively target the affected area. Side lying with the right side of the chest elevated (Choice C) would not utilize gravity for optimal drainage. Placing the client prone with pillows under the extremities (Choice D) is not ideal for postural drainage of the left lower lobe.

Correct Answer: D

Rationale: Discontinuing the infusion is the first step in addressing potential complications such as phlebitis or infection. It is crucial to prevent further infusion-related damage by stopping the source of the issue. Obtaining a specimen for culture (Choice A) can be considered later to identify the specific microorganism causing the infection. Applying a warm compress (Choice B) or administering analgesics (Choice C) may provide comfort but do not address the underlying issue of infection or phlebitis, which requires immediate intervention by discontinuing the infusion.

Correct Answer: B

Rationale: The correct answer is B: Hemoglobin. Epoetin alfa (Epogen) is a medication commonly used in clients with chronic kidney disease to stimulate red blood cell production. Monitoring hemoglobin levels is crucial to assess the effectiveness of epoetin alfa therapy. Hemoglobin levels reflect the oxygen-carrying capacity of the blood and indicate if the medication is successfully treating anemia associated with chronic kidney disease. Option A, serum creatinine, is a marker of kidney function, not the primary indicator of epoetin alfa effectiveness. Option C, blood urea nitrogen (BUN), is a measure of kidney function and hydration status. Option D, platelet count, assesses clotting ability and is unrelated to monitoring the effectiveness of epoetin alfa in treating anemia in chronic kidney disease.

Correct Answer: C

Rationale: The correct answer is C. Asking about the duration of the surgery indicates readiness to learn about the procedure. This question shows that the client is actively seeking information about the surgical process, demonstrating readiness to learn. Choices A, B, and D reflect concerns, specific requests, or statements unrelated to the learning process. They do not directly indicate readiness to absorb information about the upcoming mastectomy.

Correct Answer: B

Rationale: The correct answer is B. Fluid restriction is commonly prescribed for clients with heart failure to prevent fluid overload and exacerbation of heart failure symptoms. Heart failure often leads to fluid retention, and restricting fluid intake can help manage this condition. Adrenal insufficiency, diabetic ketoacidosis, and abdominal ascites do not typically require fluid restriction as a primary intervention. Adrenal insufficiency may require hormone replacement therapy, diabetic ketoacidosis requires fluid and electrolyte replacement, and abdominal ascites may require diuretics or paracentesis to remove excess fluid.