how many hours to fast before diabetes test
Asked by: JohnDoe123
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Community Answer
Answered by Dr. Emily 🩺
For most diabetes tests, such as the fasting blood glucose test, you typically need to fast for 8 to 12 hours before the test. This means no food or drink (except water) during this period. However, the A1C test does not require fasting.
Here’s a quick guide:
Test Type Fasting Required? Fasting Duration
Fasting Blood Glucose Yes 8-12 hours
A1C Test No Not applicable
Oral Glucose Tolerance Test (OGTT) Yes 8-12 hours
Always follow your healthcare provider's instructions for accurate results.