Description
Why It’s Done
The Glucose Fasting test is primarily used to:
• Screen for diabetes or prediabetes
• Diagnose:
o Type 1 Diabetes
o Type 2 Diabetes
o Prediabetes
• Monitor blood sugar levels in people already diagnosed with diabetes
• Evaluate symptoms such as increased thirst, frequent urination, fatigue, or blurred vision
It’s often part of a routine health checkup or when there is a family history or risk factors for diabetes (e.g., obesity, high blood pressure, or sedentary lifestyle).
Preparation
To ensure accurate results:
• Fasting is required: Do not eat or drink anything except water for 8–12 hours before the test.
• Avoid caffeine and alcohol: For at least 8 hours prior to the test.
• Take medications as directed: But inform your doctor about any medications, as some may affect glucose levels.
• Avoid strenuous exercise before the test, as it can influence results.
The test involves a simple blood draw from a vein in your arm.
