Correct Answer: B

Rationale: The correct answer is B: Glyburide stimulates insulin production and release from the pancreas. Glyburide belongs to the sulfonylurea class of antidiabetic medications, which work by stimulating the pancreas to produce and release more insulin. This helps to lower blood glucose levels. Choice A is incorrect because glyburide does not decrease glucagon secretion; instead, it acts on insulin. Choice C is incorrect because taking glyburide when blood glucose is low can lead to hypoglycemia. Choice D is incorrect as there is no specific interaction between glyburide and IV contrast media that requires avoiding its use for 48 hours.

Correct Answer: A

Rationale: In a client experiencing vomiting and diarrhea, the nurse should expect findings such as dehydration, which can lead to hypovolemia and subsequent increased heart rate and decreased blood pressure. A blood pressure of 144/82 mm Hg is indicative of possible dehydration in this client. Urine specific gravity is typically increased in dehydrated individuals, so choices B and D are incorrect. Neck vein distention is not a typical finding associated with vomiting and diarrhea; therefore, choice C is also incorrect.

Correct Answer: C

Rationale: The correct answer is C: 'It empowers staff to make decisions.' Effective delegation involves entrusting tasks and decisions to staff, which not only lightens the manager's load but also empowers employees, enhancing their skills and confidence. Choice A is incorrect because effective delegation should reduce the manager's workload by distributing tasks appropriately. Choice B is incorrect as effective delegation involves empowering staff to make decisions rather than the manager making all decisions. Choice D is incorrect as effective delegation actually increases staff involvement by giving them more responsibilities and decision-making power.

Correct Answer: C

Rationale: Weight loss is a common symptom in the onset of type 1 diabetes due to the body's inability to use glucose for energy. The lack of insulin leads the body to break down fat and muscle for fuel, causing unintentional weight loss. This is a more relevant question compared to the others, as it directly relates to the metabolic changes associated with type 1 diabetes.

Correct Answer: D

Rationale: The correct answer is D: 'You can delegate only those tasks.' Delegation in nursing involves transferring responsibility for the performance of a task while retaining accountability for the outcome. The principle of delegation does not require a situation with clearly defined superiors (choice A). Delegation can exist not only with a subordinate but also with colleagues or other healthcare team members (choice B). Delegation is not exclusive to nurses and is a tool used by various healthcare professionals (choice C). Therefore, the best choice is D as it accurately reflects the principle of delegation in nursing.