Final answer:
One sign of hyperglycemia is frequent urination. When blood glucose levels rise above normal, it leads to hyperglycemia. This condition can result in glucose excretion in the urine, making it taste sweet in people with diabetes.
Step-by-step explanation:
One sign of hyperglycemia is frequent urination. When blood glucose levels rise above normal (180-360 mg/100 ml), it leads to hyperglycemia. This condition can result in the excretion of glucose in the urine, which is why urine may taste sweet in people with diabetes.