Home Biomarkers Fasting Glucose

Metabolic Panel

Fasting Glucose (GLU)

Blood sugar after an 8-hour fast. First-line screen for prediabetes and diabetes.

Units

mg/dL

Reference (Male)

70 – 99 mg/dL

Reference (Female)

70 – 99 mg/dL

Aliases

FBG, FPG

What it measures

Blood sugar after an 8-hour fast. First-line screen for prediabetes and diabetes.

What a high value can mean

Prediabetes (100–125), type 2 diabetes (≥126), stress, steroids, pancreatitis.

What a low value can mean

Hypoglycemia, insulin overdose, adrenal insufficiency, alcohol use, prolonged fasting.

Conditions it helps assess

  • Diabetes
  • Prediabetes
  • Hypoglycemia

Reading these numbers in context

Reference ranges describe the central 95 % of a healthy reference population — 5 % of perfectly healthy people fall outside any given range by definition. A single mildly abnormal value is rarely meaningful on its own. blood-test.life always interprets values together with related biomarkers before flagging.

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