Correct Answer: B

Rationale: The correct answer is 'Physician assistant.' Physician assistants are trained to make medically substantiated decisions based on their specific medical training within the combat health support chain. Choice A, 'Physician,' is incorrect as they may be involved but are not typically the first in line for such decisions as physician assistants. Choice C, 'Combat medic,' is incorrect as they usually provide immediate medical care but may not be the first to make medically substantiated decisions. Choice D, 'Combat lifesaver,' is incorrect as they are trained to provide basic life-saving interventions but may not have the specialized medical training to make complex medical decisions.

Correct Answer: B

Rationale: Assessing the client's bilateral pedal pulses is essential in this situation as it helps in evaluating the peripheral perfusion and circulation in the lower extremities. This assessment is crucial to detect any signs of decreased blood flow or complications, such as arterial occlusion or thrombosis. Ambulating the client may be important in the postoperative period, but assessing pedal pulses takes priority to ensure adequate perfusion. Maintaining continuous IV heparin drip is not typically indicated immediately post-operatively for an abdominal aortic aneurysm repair, as the risk of bleeding complications may outweigh the benefits. Providing a clear liquid diet is not a priority nursing intervention at this stage, as the focus should be on vascular assessment and postoperative monitoring.

Correct Answer: D

Rationale: The correct answer is D, administering phosphate binders. Phosphate binders are a primary intervention for managing hyperphosphatemia as they help by binding phosphorus in the gut, preventing its absorption. Increasing calcium intake (choice A) or phosphorus intake (choice B) would exacerbate hyperphosphatemia. Decreasing calcium intake (choice C) is not a primary intervention for managing high phosphorus levels.

Correct Answer: D

Rationale: The correct answer is D: 52 weeks. The Practical Nurse Course is typically conducted over a period of 52 weeks. This duration allows for comprehensive training in various aspects of nursing. Choice A, 46 weeks, is incorrect as it falls short of the standard duration of the course. Choice B, 18 months, is incorrect as it represents a longer timeframe than the typical duration of the course. Choice C, 6 weeks, is incorrect as it is too short for the comprehensive training provided in a Practical Nurse Course.

Correct Answer: D

Rationale: The correct answer is D, High-density lipoprotein (HDL). HDL is known as the 'good' cholesterol and plays a crucial role in transporting cholesterol from tissues back to the liver for excretion. This process helps in reducing the buildup of cholesterol in the bloodstream, thus lowering the risk of heart diseases. Very low-density lipoprotein (Option A), Intermediate-density lipoprotein (Option B), and Low-density lipoprotein (Option C) are not responsible for carrying cholesterol back to the liver for excretion like HDL does. Instead, they are associated with different functions related to cholesterol transportation within the body.