Correct Answer: A

Rationale: Administering oxygen is the priority intervention for a client with a pulmonary embolism. Pulmonary embolism can lead to impaired gas exchange, causing hypoxemia. Administering oxygen helps to maintain adequate oxygenation levels. Thoracentesis is not indicated for a pulmonary embolism, as it is a procedure to remove fluid or air from the pleural space, not a treatment for embolism. Elevating the client's lower extremities is not a priority in the management of a pulmonary embolism. Administering anticoagulant therapy is important in the treatment of pulmonary embolism to prevent further clot formation, but it is not the first intervention. Oxygen administration takes precedence to address the immediate oxygenation needs of the client.

Correct Answer: C

Rationale: In acute pancreatitis, the nurse should expect elevated blood glucose levels. This is due to impaired insulin production by the inflamed pancreas. While serum amylase and lipase levels are typically elevated in acute pancreatitis, blood glucose levels are also affected due to the pancreatic dysfunction. Therefore, choices A and B are incorrect. Elevated calcium levels are not typically associated with acute pancreatitis, making choice D incorrect.

Correct Answer: B

Rationale: The correct answer is B: Glycosylated hemoglobin (HbA1c). The glycosylated hemoglobin test measures average blood glucose levels over the past 2-3 months, providing an indication of long-term glycemic control in clients with diabetes. Choice A, postprandial blood glucose, reflects blood sugar levels after a meal and does not provide a long-term view. Choice C, glucose tolerance test, evaluates the body's ability to process sugar but does not offer a continuous assessment like the HbA1c test. Choice D, fasting blood glucose, measures blood sugar levels after a period of fasting, which is more indicative of immediate glycemic status rather than long-term management.

Correct Answer: B

Rationale: The correct intervention for a client experiencing alcohol withdrawal is to administer lorazepam. Lorazepam, a benzodiazepine, is commonly used to manage the symptoms of alcohol withdrawal by preventing seizures and reducing agitation and anxiety. Encouraging frequent ambulation (choice A) may not be safe during alcohol withdrawal due to potential instability and confusion. Providing a low-calorie diet (choice C) is not a priority during alcohol withdrawal, as the focus is on managing withdrawal symptoms. Administering insulin as prescribed (choice D) is unrelated to managing alcohol withdrawal symptoms.

Correct Answer: D

Rationale: The correct answer is to leave one side rail up on the client's bed. This action can help prevent falls while allowing the client to get up safely when needed, reducing the risk of injury from wandering. Placing the client in seclusion (Choice A) is not appropriate as it can lead to increased agitation and distress. Requesting restraints (Choice B) should be avoided as it can increase the risk of injuries and is not recommended for clients with Alzheimer's. Dimming the lighting (Choice C) may increase confusion and disorientation in clients with Alzheimer's disease.