Correct Answer: D

Rationale: The correct answer is D: Papillary carcinoma. This is the most common form of thyroid cancer in adults, accounting for about 80% of cases. It is typically slow-growing and has a good prognosis. Papillary carcinoma arises from the follicular cells of the thyroid gland. Follicular carcinoma (choice A) is less common than papillary carcinoma and arises from the follicular cells as well. Anaplastic carcinoma (choice B) is a highly aggressive and rare form of thyroid cancer. Medullary carcinoma (choice C) originates from the parafollicular C cells of the thyroid gland and is not as common as papillary carcinoma. Therefore, the most appropriate choice is D, papillary carcinoma, due to its high prevalence and relatively favorable prognosis.

Correct Answer: B

Rationale: The correct answer is B: decrease resident intestinal flora. Lactulose is a synthetic sugar that is not absorbed in the intestine and is used to decrease ammonia levels in patients with hepatic encephalopathy by promoting the growth of beneficial gut bacteria that help metabolize ammonia. This action helps reduce the toxic effects of ammonia on the brain. A: prevent constipation - Lactulose may help with constipation, but its primary action in this scenario is to decrease resident intestinal flora. C: increase intestinal peristalsis - Lactulose does not directly increase peristalsis. D: prevent portal hypertension - Lactulose does not have a direct effect on preventing portal hypertension.

Correct Answer: C

Rationale: The correct answer is C (600ml/24hr) because insensible fluid losses in an afebrile person are typically around 600ml per 24 hours. Insensible losses include water lost through the skin as sweat and through the lungs during respiration. These losses are not easily quantifiable but are estimated to be around 600ml/day in normal circumstances. Choices A, B, and D are incorrect because they are either too low (A and B) or too high (D) compared to the normal range of insensible fluid losses. Selecting C as the correct answer is based on the understanding of physiological principles related to fluid balance and normal body functions.

Correct Answer: C

Rationale: The correct answer is C, the 35-year-old with kidney failure. Patients with kidney failure are at high risk for fluid volume overload due to the kidneys' inability to properly regulate fluid balance. This can lead to accumulation of excess fluids in the body, causing edema, hypertension, and heart failure. In contrast, choices A, B, and D are not at as high risk for fluid volume overload as patients with kidney failure, as their conditions do not directly impact fluid regulation in the body.

Correct Answer: A

Rationale: The correct answer is A because thalassemia is a genetic blood disorder that can cause anemia and fatigue. By maintaining the client on bed rest and protecting them from infections, we can help prevent complications such as fatigue and infections due to reduced red blood cell production. Ambulating the client frequently (choice B) may lead to increased fatigue and risk of injury. Advising to drink 3 quarts of fluid per day (choice C) is not specific to thalassemia treatment and could potentially worsen symptoms. Instructing the client to elevate lower extremities (choice D) is not directly related to managing thalassemia and may not provide significant benefits in this context.