What condition is characterized by insufficient sugar in the blood?

Hypoglycemia is characterized by insufficient sugar, or glucose, in the blood. This condition occurs when blood sugar levels drop below normal, typically defined as less than 70 mg/dL. Insufficient glucose in the bloodstream can lead to various symptoms such as shakiness, confusion, sweating, irritability, and in severe cases, loss of consciousness or seizures. Individuals with diabetes are particularly susceptible to hypoglycemia, especially if they take insulin or certain oral medications that increase insulin levels in the body.

In contrast, hyperglycemia refers to elevated blood sugar levels, while diabetic coma can occur due to severe hyperglycemia or other factors but is not specifically defined by low blood sugar. Diabetic ketoacidosis, on the other hand, is a serious complication of diabetes resulting from a lack of insulin, leading to high levels of ketones and acidity in the blood, and is also associated with high blood sugar. Hypoglycemia is a critical condition that requires quick identification and treatment to prevent serious health complications.