The GTT is generally performed in a clinical setting and involves several steps:
1. Fasting Blood Glucose Test: The patient must fast overnight for at least 8 hours. A blood sample is taken to measure fasting glucose levels. 2. Glucose Drink: The patient consumes a sugary drink containing a specific amount of glucose (usually 75g or 100g). 3. Subsequent Blood Tests: Blood samples are taken at intervals (e.g., 1 hour, 2 hours, and 3 hours) after consuming the glucose drink to measure how quickly glucose is cleared from the blood.
