A 4-year-old asymptomatic child, whose older brother has type 1 diabetes mellitus, is found to have a single positive islet autoantibody on screening. What is the approximate 10-year risk for this child to progress to clinical type 1 diabetes mellitus?
A 3-week-old infant with known classic salt-wasting congenital adrenal hyperplasia presents to the emergency department with lethargy, poor feeding, and dehydration. Laboratory results show severe hyponatremia, hyperkalemia, and hypoglycemia. After securing intravenous access and drawing blood for hormone levels, what is the most appropriate initial fluid management?