Description
Why It’s Done
This test is commonly ordered:
• To screen for diabetes or prediabetes
• To monitor blood sugar levels in people with diabetes
• To investigate symptoms like excessive thirst, frequent urination, fatigue, or blurred vision
• As part of routine health checkups
Preparation
For fasting glucose or OGTT, you may need to avoid eating or drinking anything (except water) for 8–12 hours prior to the test. Always follow your healthcare provider’s instructions.
