In a basal fasting state, which analyte is commonly measured to assess carbohydrate metabolism?

• A. Glucose
• B. Triglycerides
• C. Cholesterol
• D. Electrolytes

Answer: (A)

Measuring glucose in the fasting state directly reflects how the body handles carbohydrates when no recent food influences blood sugar. In fasting conditions, insulin is low and the liver maintains blood glucose through gluconeogenesis and glycogenolysis, so the fasting glucose level shows the baseline capacity to regulate carbohydrate metabolism. This makes fasting plasma glucose a standard test for screening diabetes and assessing glucose homeostasis. Triglycerides and cholesterol relate to lipid metabolism, not carbohydrate processing, while electrolytes track mineral balance and fluid status rather than glucose handling.