Correct Answer: C

Rationale: The correct answer is C: Decreases hepatic glucose production. Metformin primarily works by reducing the production of glucose in the liver (hepatic glucose production) and by improving insulin sensitivity in various tissues. Choice A is incorrect as metformin does not stimulate insulin secretion from the pancreas. Choice B is incorrect as metformin increases insulin sensitivity in various tissues, not just muscle cells. Choice D is incorrect as metformin does not delay glucose absorption from the intestines.

Correct Answer: B

Rationale: In the case of diabetic ketoacidosis, the most critical treatment to initiate is starting an insulin drip. Insulin therapy is crucial for reducing blood glucose levels by promoting glucose uptake in cells and inhibiting the production of ketones. Administering sodium bicarbonate IV is generally not recommended as it may lower the pH further and potentially worsen the condition. While monitoring glucose and ketone levels is important for assessing the response to treatment, initiating insulin therapy takes precedence. Providing oral hydration alone is insufficient to manage the metabolic derangements seen in diabetic ketoacidosis.

Correct Answer: D

Rationale: Heart rate, stroke volume, and peripheral resistance are indeed key parameters that directly influence blood pressure. Heart rate refers to the number of times the heart beats per minute, affecting how much blood is pumped. Stroke volume is the amount of blood pumped by the heart in one contraction. Peripheral resistance is the resistance of the arteries to blood flow, impacting the pressure needed to push blood through. Neuroendocrine hormones, while they can indirectly influence blood pressure regulation by affecting factors like blood volume and vascular tone, are not direct final parameters that produce blood pressure.

Correct Answer: A

Rationale: The most important instruction for a client with a history of seizures being discharged home is to take their medication as prescribed. Consistent and timely intake of anti-seizure medication is vital in managing seizures and preventing episodes. While instructions like avoiding driving until the condition is stable, keeping a seizure diary, and avoiding alcohol consumption are important, none are as critical as ensuring proper medication adherence to control seizures effectively. Failure to take prescribed medications can lead to breakthrough seizures, compromising the patient's safety and seizure control.

Correct Answer: B

Rationale: The correct response for the nurse in this situation is to ask for a description of what happened during the night. This allows the nurse to gather specific information about the care provided and address the complaint appropriately. Choice A is incorrect because dismissing the concern by stating that all staff are doing their best does not address the specific complaint. Choice C is not the best immediate response as the charge nurse should first gather information before escalating the issue to the nurse manager. Choice D is incorrect as it focuses on reassurance without addressing the reported issue.