Which of the following best describes hyperglycemia?

Hyperglycemia is characterized by excessively high glucose levels in the blood. This condition typically occurs when the body does not have enough insulin or when cells are resistant to insulin's effects, preventing glucose from entering cells and leading to an accumulation of glucose in the bloodstream.

It is a common issue in individuals with diabetes and can result in symptoms such as increased thirst, frequent urination, fatigue, and blurred vision. When blood glucose levels rise significantly and remain elevated, it can lead to more serious complications over time, including damage to various organs and systems in the body.

Normal blood glucose levels are essential for proper body function, and identifying hyperglycemia is crucial for managing diabetes effectively. While low blood sugar, normal levels, and fluctuations in glucose may represent different conditions, the defining characteristic of hyperglycemia is specifically the presence of excessively high glucose concentrations in the blood.