Hyperglycemia is defined as what?

• A. Increased levels of glucose in the blood.
• B. Decreased levels of glucose in the blood.
• C. Normal glucose levels.
• D. No glucose in the blood.

Answer: (A)

Hyperglycemia means elevated glucose levels in the blood. The body keeps blood sugar within a narrow range using insulin, but when this regulation is impaired or overwhelmed, glucose remains high after meals or between them. That elevated level is the defining feature. It’s different from hypoglycemia, which is when glucose is too low, and from normal glucose levels, which are within the healthy range. The idea of no glucose in the blood isn’t accurate, since some glucose is always circulating and is needed for energy. In a dental clinical context, recognizing hyperglycemia is important because high blood sugar can impair healing and increase infection risk.