Correct Answer: B

Rationale: The correct answer is B: Help the client don thromboembolic stocking or support hose during waking hours. This intervention helps decrease the risk for thrombus formation in polycythemia vera by promoting venous return and preventing blood pooling in the lower extremities. Compression stockings improve circulation and reduce the risk of blood clots. Isometric exercises (choice A) may increase blood pressure and heart rate, potentially worsening the risk of thrombus formation. Drinking excess fluid (choice C) can lead to hypervolemia and increase the risk of clotting. Resting immediately if chest pain develops (choice D) is important but does not directly address the prevention of thrombus formation in polycythemia vera.

Correct Answer: B

Rationale: The correct answer is B: Bence jones protein in the urine. In multiple myeloma, abnormal plasma cells produce excess monoclonal immunoglobulins, including Bence Jones proteins, which can be detected in the urine. This is a hallmark finding in multiple myeloma diagnosis. A: Incorrect. Serum creatinine levels are typically not affected in multiple myeloma. C: Incorrect. Hypercalcemia, not hypocalcemia, is commonly seen in multiple myeloma due to bone destruction. D: Incorrect. Multiple myeloma often presents with high serum protein levels, not low levels.

Correct Answer: A

Rationale: The correct answer is A, the 50-year-old with an ileostomy, should be monitored most closely for dehydration. Patients with an ileostomy have a higher risk of dehydration due to increased fluid loss through the stoma. Monitoring their fluid intake, output, electrolyte levels, and signs of dehydration is crucial to prevent complications. The other choices are less likely to experience severe dehydration compared to the patient with an ileostomy. The 72-year-old with diabetes mellitus may be at risk for dehydration, but it is not as high a risk as the patient with an ileostomy. The 19-year-old with chronic asthma and the 28-year-old with a broken femur are not as directly related to dehydration compared to the patient with an ileostomy.

Correct Answer: B

Rationale: The correct answer is B because it addresses the importance of notifying the physician about a painless lump at the top of the chest incision, which could indicate a serious complication like a seroma or hematoma. This is crucial for early detection and intervention. A is incorrect because showers are generally allowed after cardiac surgery as long as the incisions are kept clean and dry. C is incorrect because support hose or elastic stockings are typically recommended to be worn during the day and removed at night to prevent swelling and promote circulation. D is incorrect because resuming sexual relations after cardiac surgery should be based on individual recovery and should be discussed with the healthcare provider, rather than a standard timeframe.

Correct Answer: A

Rationale: The correct answer is A because reassessing the client's diet, medication, and lifestyle habits allows the nurse to identify any factors contributing to the elevated blood glucose levels. By identifying possible issues, the nurse can make necessary adjustments to the treatment plan to better manage the client's condition. Increasing medication dosage without understanding the root cause may lead to adverse effects. Simply documenting the elevated levels without taking proactive measures does not address the problem. Notifying the client's family is not the nurse's first action; the focus should be on assessing and addressing the client's needs.