Correct Answer: B

Rationale: Atherosclerosis is primarily caused by high blood cholesterol, high blood pressure, and cigarette smoking. These factors contribute to the buildup of plaque in the arteries. Choices A, C, and D are incorrect. Hyperthyroidism, underweight, and poor appetite do not directly cause atherosclerosis. Similarly, constipation, peptic ulcer disease, pancreatitis, kidney failure, edema, and sodium retention are not among the primary causes of atherosclerosis.

Correct Answer: D

Rationale: Assisting the client to sit in a chair is a crucial nursing intervention postoperatively. It helps prevent complications such as thrombosis, pneumonia, and pressure ulcers by promoting circulation and aiding in recovery. Changing the infusion rate of the intravenous fluid would require a physician's order and is not within the nurse's independent scope of practice. Encouraging the client to discuss feelings and administering medications for pain management are important interventions but may not be as immediately necessary as assisting the client in mobilizing early postoperatively.

Correct Answer: C

Rationale: The correct answer is C. Smoking, especially in clients over 30, increases the risk of thromboembolic events, making oral contraceptives contraindicated. Choice A is incorrect as age alone is not a contraindication for oral contraceptives. Choice B is incorrect as having multiple pregnancies is not a contraindication for oral contraceptives. Choice D is incorrect as borderline hypertension is not a strict contraindication for oral contraceptives.

Correct Answer: B

Rationale: In cases of food poisoning, a 2-year-old with reduced urine output is a critical finding indicating dehydration, requiring immediate attention to prevent complications. The reduced urine output is a sign of decreased fluid intake or increased fluid loss, putting the child at high risk for dehydration. This client should be seen first to assess hydration status, initiate necessary interventions, and prevent further complications. While the other symptoms presented by the other clients are concerning, the 2-year-old's decreased urine output poses the most immediate threat to their well-being.

Correct Answer: A

Rationale: The correct answer is A: Deep tendon reflexes. When administering magnesium sulfate to a client with chronic alcoholism, chronic pancreatitis, and hypomagnesemia, the nurse should assess deep tendon reflexes. Magnesium sulfate can depress the central nervous system and decrease deep tendon reflexes, so monitoring them is crucial. Choices B, C, and D are not directly related to the assessment needed when administering magnesium sulfate in this scenario. Arterial blood gases are not typically assessed specifically for magnesium sulfate administration; skin turgor and capillary refill time are more related to hydration status and perfusion, respectively.