Correct Answer: A

Rationale: The correct answer is A: 'Antiembolism stockings on, leg exercises performed hourly.' This documentation indicates the correct performance of activities to prevent postoperative venous stasis, as both components are crucial for prevention. Choice B is incorrect because removing stockings hourly is not recommended. Choice C is incorrect as leg exercises should be performed despite wearing antiembolism stockings. Choice D is incorrect as demonstrating the ability to move extremities well does not specifically address the prevention of venous stasis.

Correct Answer: D

Rationale: The correct next step for the nurse is to measure the area of crepitus. Crepitus indicates subcutaneous emphysema, which is a serious condition requiring monitoring. Applying a pressure dressing (Choice A) could worsen the condition by trapping air under the skin. Administering an oral antihistamine (Choice B) is not indicated for crepitus. Assessing for allergies to cleaning agents (Choice C) is not the priority when dealing with crepitus and subcutaneous emphysema.

Correct Answer: D

Rationale: Elevating the head of the bed in a client with acute respiratory distress syndrome (ARDS) is essential to drain secretions and prevent aspiration. This position helps facilitate the removal of secretions from the airways, reducing the risk of aspiration pneumonia. Choices A, B, and C are incorrect as the primary reason for elevating the head of the bed in ARDS is to assist with secretion drainage and prevent complications associated with aspiration.

Correct Answer: B

Rationale: The correct answer is B: 'Foods sweetened with aspartame.' Children with PKU must avoid foods containing aspartame because it breaks down into phenylalanine, which can worsen their condition. Choice A, fresh fruit and vegetables, are generally healthy and safe for individuals with PKU. Choice C, bread with honey, is also safe unless the bread contains artificial sweeteners like aspartame. Choice D, gluten-rich bread, is not specifically problematic for individuals with PKU unless it contains aspartame or other substances high in phenylalanine.

Correct Answer: B

Rationale: The correct answer is B: Monitor the client's intake and output. When a client with acute pancreatitis is on NPO status, the nurse's priority intervention is to monitor the client's intake and output. This is crucial to assess for signs of dehydration, electrolyte imbalances, and to ensure the client is responding appropriately to treatment. Administering antiemetic medication (choice A) may be necessary for managing nausea and vomiting but is not the priority over monitoring intake and output. Providing mouth care (choice C) and elevating the client's head of the bed (choice D) are important aspects of care but do not take precedence over monitoring intake and output to prevent complications in clients with NPO status due to acute pancreatitis.