Fasting Plasma Glucose
- Sample Type
- Standard
- Fasting
- No
- Unit
- mg/dL
The Fasting Plasma Glucose (FPG) serves as the baseline measurement in a Glucose Tolerance Test. It represents the blood sugar level after an 8-12 hour fast, reflecting the body's ability to maintain glucose homeostasis through hepatic gluconeogenesis and basal insulin secretion. It is the primary screening tool for Prediabetes and Diabetes Mellitus.
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Enter your lab result to see where you stand compared to the standard reference range.
Why Context Matters
FPG can be temporarily elevated by acute stress, lack of sleep, or recent illness (due to cortisol release). Certain medications like corticosteroids or thiazide diuretics can also significantly elevate fasting levels, leading to a false diagnosis of diabetes.
Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.
Clinical References
Source-of-truth databases and clinical guidelines for Fasting Plasma Glucose:
Official Sources
Research & Guidelines
- PubMed: Fasting Plasma Glucose Clinical GuidelinesNCBI / PubMed
Related Indicators
Medically Reviewed by Dr. Binoy Babu, MBBS
Board Certified Doctor • 10+ Years Clinical Experience
Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.
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