Which tests measure Fasting Plasma Glucose?

Fasting Plasma Glucose is measured in 1 test on BiomarkersLabs.com, including Advanced Metabolic Panel Plus.

Biomarker Reference · FPG

What does the Fasting Plasma Glucose test measure?

Q: What is the reference range for Fasting Plasma Glucose?

The standard reference range for Fasting Plasma Glucose is 3.9–5.5 mmol/L (70–99 mg/dL). Reference ranges vary by laboratory and assay platform — interpret in context of the issuing laboratory's stated range.

Fasting Plasma Glucose (FPG) is a clinical biomarker used in metabolic-diabetes assessment. Glucose is the primary metabolic fuel for all tissues and is tightly regulated by insulin secretion, hepatic production, and peripheral uptake. It is measured in 1 laboratory test on BiomarkersLabs.com.

Reference Range: 3.9–5.5 mmol/L (70–99 mg/dL)
Units: mmol/L, mg/dL
Measured In: 1 test
Category: Metabolic

Functional medicine optimalFunctional practitioners often target 4.4–5.0 mmol/L (80–90 mg/dL) for metabolic optimisation, though evidence for these tighter thresholds is less robust than established diagnostic cut-offs.

What is Fasting Plasma Glucose?

Glucose is the primary metabolic fuel for all tissues and is tightly regulated by insulin secretion, hepatic production, and peripheral uptake. Fasting plasma glucose reflects the balance between endogenous glucose output and basal insulin action in the absence of exogenous carbohydrate load.

Why is Fasting Plasma Glucose measured?

Fasting glucose is a cornerstone of diabetes screening and diagnosis. Values ≥7.0 mmol/L meet the diagnostic threshold for diabetes mellitus, while 5.6–6.9 mmol/L define prediabetes. Persistently elevated fasting glucose signals impaired insulin secretion, increased hepatic gluconeogenesis, or reduced peripheral glucose uptake.

Reference ranges

Standard reference: 3.9–5.5 mmol/L (70–99 mg/dL)
Functional medicine optimal: Functional practitioners often target 4.4–5.0 mmol/L (80–90 mg/dL) for metabolic optimisation, though evidence for these tighter thresholds is less robust than established diagnostic cut-offs.
Units: mmol/L, mg/dL

Reference ranges vary by laboratory and assay platform. Interpret in context of the issuing laboratory's stated range.

Tests that measure Fasting Plasma Glucose

1 test on BiomarkersLabs.com include this biomarker.

BML-MET-019Comprehensive

Advanced Metabolic Panel Plus

Fasting Plasma Glucose reference range in this test: 3.9–5.5 mmol/L (70–99 mg/dL)

Related clinical conditions

Related Biomarkers

Frequently measured alongside

Haemoglobin A1cHbA1c5 tests Fasting InsulinInsulin2 tests Homeostatic Model Assessment of Insulin ResistanceHOMA-IR2 tests TriglyceridesTG4 tests High-Density Lipoprotein CholesterolHDL-C3 tests Low-Density Lipoprotein Cholesterol (calculated)LDL-C1 test Total CholesterolTC3 tests Serum CreatinineCr6 tests

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