Correct Answer: A

Rationale: Hepatic encephalopathy is caused by the buildup of ammonia in the body, not urea. Ammonia accumulates due to liver dysfunction, leading to neurological symptoms. Fatty infiltration of the liver may lead to conditions like non-alcoholic fatty liver disease, but it is not the direct cause of hepatic encephalopathy. Jaundice is a symptom of liver dysfunction but is not the primary cause of hepatic encephalopathy.

Correct Answer: D

Rationale: The structured review at the end of the Practical Nurse Course is specifically designed to prepare students for the practical nurse licensure examination. This examination is crucial for students to obtain their practical nurse license and start their career as a licensed practical nurse. Choices A, B, and C are incorrect because the focus at the end of the course is on preparing students for the licensure examination, not for Army Nurse Course, out-processing, or the next duty assignment.

Correct Answer: C

Rationale: The correct answer is to wear extra warm clothing during cold exposure. This instruction is crucial for managing Raynaud's phenomenon as it helps prevent vasospasms triggered by cold temperatures. Choice A is incorrect because exacerbations can occur in any season. Choice B is not directly related to managing Raynaud's phenomenon. Choice D is also irrelevant as direct sunlight exposure does not typically worsen symptoms of Raynaud's phenomenon.

Correct Answer: D

Rationale: Morphine is the preferred analgesic in sickle cell crisis due to its potency and effectiveness in managing severe pain.

Correct Answer: D

Rationale: Dry, brittle hair is a common sign of malnutrition, often seen in clients with anorexia nervosa. In anorexia nervosa, the body lacks essential nutrients due to severe calorie restriction, leading to dryness and brittleness of the hair. Choices A, B, and C are less likely to directly indicate anorexia nervosa. Preoccupation with calories can be a behavioral symptom, thick body hair is not a typical finding associated with anorexia nervosa, and a sore tongue is more commonly related to nutritional deficiencies like vitamin deficiencies rather than anorexia nervosa.