Correct Answer: C

Rationale: Most peptic ulcers occur in the duodenum, particularly in cases of duodenal ulcers. The correct answer is the duodenum because it is the most common site for peptic ulcers to develop. Peptic ulcers rarely occur in the esophagus and jejunum, making choices A, B, and D incorrect.

Correct Answer: B

Rationale: The correct answer is B, Diabetes insipidus. Diabetes insipidus can develop after a head injury due to damage to the hypothalamus or pituitary gland, leading to a deficiency in antidiuretic hormone (ADH). Pheochromocytoma (Choice A) is a tumor of the adrenal gland that causes excessive release of catecholamines, leading to hypertension. Hashimoto's disease (Choice C) is an autoimmune condition affecting the thyroid gland. Gynecomastia (Choice D) refers to the enlargement of breast tissue in males and is not directly related to a closed head injury with increased intracranial pressure.

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: D

Rationale: Complaints of chills and feeling feverish may indicate infection, which requires immediate intervention. In this postoperative setting, the presence of thin pink drainage in the Jackson Pratt drain is expected as part of the normal healing process. Guarding when the nurse touches the abdomen and tenderness around the surgical site are common after surgery and may not require immediate intervention unless they are severe or accompanied by other concerning symptoms.

Correct Answer: D

Rationale: The correct interventions for a client with peripheral vascular disease include keeping the area between the toes dry to prevent moisture-related skin issues and wearing comfortable, well-fitting shoes to prevent injury and promote circulation. Cutting toenails straight across is important to prevent ingrown toenails, but in this case, an arch cut can lead to injury. Therefore, choices A and B are correct, making option D the most appropriate answer. Choice C is incorrect in this context.