A Fasting Glucose test measures your blood sugar level after not eating for at least 8-12 hours. This is the standard screening test for diabetes and prediabetes, providing a baseline measure of how your body regulates blood sugar.
What This Test Measures
Fasting Plasma Glucose (FPG):
Your blood sugar level after fasting, which reflects your body’s baseline glucose regulation. Fasting removes the variable of food intake for accurate assessment.
Understanding Your Results
• Normal: Less than 100 mg/dL
• Prediabetes (Impaired Fasting Glucose): 100-125 mg/dL
• Diabetes: 126 mg/dL or higher (requires confirmation with repeat test)
Who Should Consider This Test
• Adults age 45+ (routine screening every 3 years if normal)
• Anyone with diabetes risk factors at any age:
– Overweight or obesity (BMI ≥25)
– Family history of type 2 diabetes
– Physical inactivity
– History of gestational diabetes
– High blood pressure
– Abnormal cholesterol
– PCOS
– History of cardiovascular disease
• Monitoring prediabetes
• Annual screening for those at high risk
Why Fasting Matters
Eating raises blood sugar for several hours. Fasting provides a standardized baseline:
• Shows how well your body maintains glucose overnight
• More reproducible than random glucose
• Required for accurate diabetes diagnosis
How It Works
1. Order your test online – no doctor visit required
2. Fast for 8-12 hours (water is permitted)
3. Visit any Quest Diagnostics location, ideally in the morning
4. Results delivered to your secure portal within 1-2 business days
Preparation
Fast for 8-12 hours before the test. Water is permitted. Schedule an early morning appointment for convenience.
Related Tests to Consider
• HbA1c – Average blood sugar over 2-3 months (no fasting required)
• Fasting Insulin – Evaluate insulin resistance
• Comprehensive Metabolic Panel – Includes glucose
Why Choose Wittmer Rejuvenation Clinic
At $18, our Fasting Glucose test is affordably priced. We partner with Quest Diagnostics for reliable, CLIA-certified laboratory testing.
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