Correct Answer: D

Rationale: Administering phosphate binders is a primary intervention for managing hyperphosphatemia. Phosphate binders work by binding phosphorus in the gut, preventing its absorption. Increasing calcium intake (Choice A) is not a primary intervention for hyperphosphatemia and can actually exacerbate the condition by potentially raising calcium levels. Increasing phosphorus intake (Choice B) is contraindicated in hyperphosphatemia. Decreasing calcium intake (Choice C) may help manage hypercalcemia but is not the primary intervention for hyperphosphatemia.

Correct Answer: C

Rationale: The correct answer is C because epistaxis and headache in a client with hypertension are signs of a hypertensive crisis, requiring immediate intervention. Option A is incorrect as constipation in a client with an abdominal aortic aneurysm, though important, does not indicate an immediate need for assessment. Option B, a client on bed rest who ambulated to the bathroom, does not present with urgent signs or symptoms requiring immediate assessment. Option D, a client with arterial occlusive disease and a decreased pedal pulse, needs attention but is not the priority compared to a hypertensive crisis with epistaxis and headache.

Correct Answer: B

Rationale: Patients evacuated from the theater of operations who are expected to return within 60 days are admitted to DOD tri-service hospitals. These hospitals are equipped to provide specialized care tailored to military personnel. Choice A, civilian hospitals participating in the National Disaster Medical System, may not always have the necessary expertise and resources to cater specifically to military-related injuries. Choice C, Department of Veterans Affairs hospitals, primarily serve veterans and may not always accommodate short-term care for active-duty personnel. Choice D, field hospitals, are usually set up in temporary or emergency situations and are not designed for long-term care, making them less suitable for patients expected to return within 60 days.

Correct Answer: A

Rationale: The correct answer is A, weight loss. Metformin is commonly associated with weight loss as a side effect rather than weight gain. Metformin works by decreasing glucose production in the liver and improving insulin sensitivity, which can lead to weight loss. Choices B, C, and D are incorrect because weight gain, drowsiness, and hypertension are not typically common side effects of metformin.

Correct Answer: B

Rationale: Short-bowel syndrome usually occurs when more than 50% of the small intestine is surgically removed. This condition results in malabsorption of nutrients and fluids due to the reduced length of the small intestine. Choice A is incorrect because the contraction of longitudinal muscles does not lead to short-bowel syndrome. Choice C is incorrect as short-bowel syndrome is primarily related to the small intestine, not the large intestine. Choice D is incorrect since decreased transit time due to infection or drugs is not a direct cause of short-bowel syndrome.