Correct Answer: C

Rationale: The correct answer is C. In type 2 diabetes mellitus, excessive thirst (polydipsia) is a common symptom due to high blood glucose levels. This results in the patient feeling unable to drink enough water to satisfy their thirst. The other options are incorrect because a recent 'cold or flu' (choice A) is not directly related to diabetes mellitus, decreased blood pressure (choice B) is not a typical finding in uncontrolled diabetes, and Kussmaul breathing (choice D) is associated with diabetic ketoacidosis, which is more common in type 1 diabetes mellitus.

Correct Answer: B

Rationale: The correct answer is B: Obesity. Children with Down syndrome are at a higher risk of obesity due to various factors such as lower metabolic rate, hormonal imbalances, and reduced physical activity levels. Addressing healthy eating habits early can help prevent obesity in these children. Choice A (Rickets) is incorrect because rickets is primarily associated with vitamin D deficiency and is not a common nutritional problem in children with Down syndrome. Choice C (Anemia) is incorrect as anemia may not be a common nutritional problem specific to children with Down syndrome. Choice D (Rumination) is incorrect as rumination is a behavioral disorder characterized by repeated regurgitation of food and is not a common nutritional problem associated with Down syndrome.

Correct Answer: B

Rationale: The priority nursing intervention for a 5-year-old child admitted to the hospital with bacterial meningitis is to isolate the child. Isolating the child is crucial to prevent the spread of infection to others, as bacterial meningitis is highly contagious. Administering antibiotics (Choice A) is important in the treatment of bacterial meningitis, but isolating the child takes precedence to protect others. Monitoring vital signs (Choice C) and administering fluids (Choice D) are essential aspects of care for a child with meningitis but are not the priority intervention to prevent the spread of the infection.

Correct Answer: D

Rationale: Promoting perianal skin integrity is crucial when caring for a young child with severe diarrhea to prevent skin breakdown from the irritation caused by frequent bowel movements. Maintaining the IV (Choice A) may be important for hydration but is not directly related to managing skin integrity. Taking daily weights (Choice B) is important for monitoring fluid balance but does not address the immediate need to prevent skin breakdown. While replacing lost calories (Choice C) is important, it is not the priority when a child is experiencing severe diarrhea and skin integrity is at risk.

Correct Answer: C

Rationale: After surgery for hypertrophic pyloric stenosis (HPS), it is appropriate to resume regular formula feeding within 24 hours postoperatively to promote recovery. Choice A, thickened formula after surgery, may be too heavy for the infant's digestive system at this early stage. Withholding feedings for the first 24 hours (Choice B) is not recommended as early feeding helps with recovery. Additional glucose feedings (Choice D) are not necessary and may not provide the balanced nutrition required after surgery.