Glucose Tolerance Test
Is a test that evaluates how fast the body metabolizes glucose. It helps monitor blood sugar levels in diabetic individuals.
The Glucose Tolerance Test (GTT) helps diagnose diabetes and evaluates how effectively your body processes glucose. It involves tracking blood sugar levels at various intervals after consuming a glucose-rich drink. The GTT generally includes these steps:
Fasting Blood Sugar
Measures blood sugar levels following an overnight fast.
Establishes a baseline to assess your body’s glucose response.Glucose Drink
You will consume a liquid containing a specific glucose amount (typically 75 grams).
The drink must be finished within a designated time (usually within 5 minutes).Blood Sugar Monitoring
Blood samples are collected periodically (every 30 minutes to 2 hours) after drinking glucose.
Monitors how efficiently your body metabolizes glucose over time.Oral Glucose Tolerance Test (OGTT)
In some cases, an extended version called the Oral Glucose Tolerance Test (OGTT) is performed.
The OGTT includes additional blood sugar checks over a period of up to 3 hours.Results Interpretation
Blood sugar levels recorded during the GTT or OGTT are compared to standard values.
Results help determine normal glucose tolerance, impaired tolerance, or diabetes risk.
Abnormal readings may indicate prediabetes (impaired glucose tolerance) or diabetes, depending on test results. The Glucose Tolerance Test is a crucial diagnostic tool for detecting diabetes and assessing glucose metabolism. It helps identify early glucose intolerance, allowing timely intervention to manage or prevent diabetes. The test is conducted under medical supervision, and adherence to fasting and preparation guidelines is essential for accurate results.
