What is a defining characteristic of hyperglycemia?

Hyperglycemia is defined by elevated levels of glucose in the blood. This condition typically arises when the body either cannot produce enough insulin or cannot effectively use the insulin it does produce. Glucose levels that exceed normal ranges can lead to a variety of symptoms and potential complications, making it a crucial condition to monitor, particularly for individuals with diabetes.

In contrast to the other options, which describe scenarios that do not align with hyperglycemia, option B accurately captures this defining characteristic. Maintaining awareness of blood glucose levels is essential for appropriate management and treatment of hyperglycemia to prevent serious health impacts.