How to read a glucose tolerance test report
Generally, glucose tolerance refers to the oral glucose tolerance test (OGTT). When reviewing an OGTT report, key indicators such as fasting blood glucose and 2-hour postprandial blood glucose should be evaluated. The specific analysis is as follows:
1. Fasting blood glucose: The oral glucose tolerance test is a glucose-loading test that assesses the body's ability to regulate glucose. Fasting blood glucose is measured after at least 8 hours without caloric intake, with a normal range of 4.4–6.1 mmol/L. Elevated levels may indicate conditions such as hyperthyroidism, adrenal cortical hyperfunction, or dehydration.
2. 2-hour postprandial blood glucose: This refers to blood glucose levels measured 2 hours after a meal. In adults, the normal range for 2-hour postprandial glucose is 3.9–7.8 mmol/L. Abnormal values may suggest impaired pancreatic islet function.
If any of these indicators are abnormal, it is recommended to promptly visit a qualified medical institution for further evaluation to determine the underlying cause and receive appropriate treatment, thus avoiding delays in diagnosis and management.