Correct Answer: C

Rationale: When a patient is prescribed an oral anticoagulant, the nurse should monitor for signs of bleeding. Oral anticoagulants work by inhibiting the blood's ability to clot, which increases the risk of bleeding. Monitoring for signs of bleeding such as easy bruising, petechiae, hematuria, or bleeding gums is crucial to prevent complications. Elevated blood glucose (Choice A) is not directly related to oral anticoagulant use. Decreased blood pressure (Choice B) is not a common effect of oral anticoagulants. Increased appetite (Choice D) is not a typical side effect of oral anticoagulants and is not a primary concern when monitoring a patient on this medication.

Correct Answer: C

Rationale: The correct instruction for a client diagnosed with Raynaud's phenomenon is to wear extra warm clothing during cold exposure. This is essential in preventing vasospasms triggered by cold temperatures, which can worsen symptoms of Raynaud's phenomenon. Choice A is incorrect because exacerbations can occur in any season. Choice B is irrelevant and not directly related to managing Raynaud's phenomenon. Choice D is also incorrect as sunlight exposure does not significantly impact Raynaud's phenomenon.

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.

Correct Answer: A

Rationale: Hepatic encephalopathy is caused by the buildup of ammonia in the body. Ammonia, a byproduct of protein metabolism, normally gets converted to urea in the liver for excretion. However, in liver dysfunction, such as cirrhosis, the liver cannot effectively convert ammonia to urea, leading to its accumulation in the body and subsequently causing hepatic encephalopathy. Choices B, C, and D are incorrect as they do not directly relate to the pathophysiology of hepatic encephalopathy.

Correct Answer: B

Rationale: The correct answer is B: "Have you had any unexplained weight loss?" Unexplained weight loss can be a common symptom of various endocrine disorders, such as hyperthyroidism and diabetes. This weight loss is often despite an adequate or increased appetite. Choices A, C, and D are less likely to be directly associated with endocrine dysfunction. Pain in the legs when walking could be related to musculoskeletal issues, changes in bowel movements may suggest gastrointestinal concerns, and joint pain is more commonly linked to rheumatologic conditions rather than primary endocrine disorders.