What is the test used to assess the body's ability to metabolize glucose after a measured glucose dose in fasting individuals?

• A. Glucose Tolerance Test
• B. Blood Sugar Tolerance Study
• C. Oral Glucose Challenge Test
• D. Glycemic Response Test

Answer: (A)

The key idea is measuring how quickly the body clears glucose after a fixed dose given after fasting. A glucose tolerance test does exactly that: after a baseline fasting measurement, a standard amount of glucose is administered and blood glucose is checked at intervals to see how well it rises and falls over time. This pattern reflects how well insulin is released and how effectively tissues respond to it. If clearance is normal, glucose returns toward baseline; if it's slow, that indicates impaired glucose tolerance or diabetes risk. The other options either describe different contexts (like a screening test used during pregnancy), use different administration methods, or aren’t standard terms for this assessment, so they don’t fit as well.