What condition is characterized by excessively high blood glucose levels?

Hyperglycemia is the condition characterized by excessively high blood glucose levels. It occurs when the body either does not produce enough insulin or cannot effectively use the insulin it produces, leading to an accumulation of glucose in the bloodstream. This condition is often associated with diabetes, especially when blood sugar levels rise above the normal range, which can pose serious health risks if left unmanaged.

The distinction between hyperglycemia and hypoglycemia is important; while hyperglycemia refers to high blood sugar, hypoglycemia refers to low blood sugar levels. Diabetes Insipidus is a different condition related to the regulation of water in the body and does not directly impact blood glucose levels. Type 1 Diabetes is a form of diabetes where the body produces little to no insulin, which can lead to hyperglycemia, but it is not the definition of the high blood sugar condition itself. Thus, hyperglycemia stands as the specific condition marked by elevated blood glucose levels.