问题
单项选择题
A child with type 1 diabetes mellitus develops diabetic ketoacidosis and receives a continuous insulin infusion. Which condition represents the greatest risk for this child ？（）
A．Hypercalcemia.
B．Hyperphosphatemia.
C．Hypokalemia.
D．Hypernatremia.
答案
参考答案：C
解析：
Insulin administration causes glucose and potassium to move into the cells, causing hypokalemia. Calcium levels aren't directly affected by insulin administration. Hypophosphatemia, not hyperphosphatemia, may occur with insulin administration because phosphorus also enters the cells with insulin and potassium. Sodium levels aren't directly affected by insulin administration.