Final answer:
A glucose tolerance test (GTT) is a medical test used to determine how quickly glucose is cleared from the blood. The test involves fasting, consuming a specific amount of glucose, and monitoring blood glucose levels at regular intervals. The results can help diagnose diabetes mellitus and assess an individual's ability to tolerate glucose.
Step-by-step explanation:
A glucose tolerance test (GTT) is a medical test used to determine how quickly glucose is cleared from the blood. This test is commonly done in patients suspected of having diabetes mellitus but do not show glucosuria. The test involves fasting for 12-14 hours, and then consuming a specific amount of glucose, usually in the form of a sugary drink. Blood samples are taken at regular intervals after the glucose ingestion to monitor blood glucose levels. The results of the test can help diagnose diabetes mellitus and assess an individual's ability to tolerate glucose.