Correct Answer: B

Rationale: In patients with heart failure, a low-sodium diet is most recommended. This type of diet helps manage fluid retention by reducing the amount of sodium in the body. Excess sodium can lead to fluid accumulation, putting additional strain on the heart. High-sodium diets can exacerbate symptoms of heart failure by causing fluid retention and increasing blood pressure. High-fat and low-carbohydrate diets are not specifically recommended for heart failure patients and may not address the underlying issues related to fluid balance and heart function.

Correct Answer: D

Rationale: The correct answer is D, Combat lifesaver. A Combat Lifesaver is a nonmedical member of a unit who receives specialized training in advanced first aid procedures, beyond basic first aid care. This training equips them to provide crucial medical assistance in emergency situations where immediate medical personnel may not be available. Choices A, B, and C are incorrect as they do not specifically refer to nonmedical members trained in advanced first aid care beyond basic procedures.

Correct Answer: D

Rationale: The correct answer is D. Under the health services support area concept, the medical care under the MEDCOM is divided into eight geographical areas of responsibility designated as health services support regions, each of which is further subdivided into two or more health service areas. This structure allows for a more organized and efficient delivery of medical care across different regions. Choices A, B, and C are incorrect because they do not accurately describe how medical care under the MEDCOM is divided according to the concept of health services support areas.

Correct Answer: C

Rationale: Choice C indicates that further teaching is needed because taking a laxative every night and aiming to have a stool daily can lead to dependence and is not recommended for managing hemorrhoids. Choices A, B, and D are appropriate self-care measures for hemorrhoids, such as increasing fiber intake, using warm compresses/sitz baths, and using analgesic ointments or suppositories for pain relief.

Correct Answer: C

Rationale: The correct answer is C. Neomycin can interfere with the absorption of fat-soluble vitamins such as vitamins A, D, E, and K. Choice A is incorrect because neomycin does not affect the absorption of iron, copper, and zinc. Choice B is incorrect as neomycin does not impact the absorption of protein and amino acids. Choice D is also incorrect as neomycin does not decrease the absorption of water-soluble vitamins like vitamin C and the B vitamins.