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2-Hour Post-Load Glucose

OGTT 2h Glucose Tolerance Test 75g OGTT
Fluoride oxalate (grey top) mmol/L

About this test

Blood glucose 2 hours after a 75 g oral glucose load. Diagnoses diabetes and impaired glucose tolerance (IGT). Recommended in pregnancy (gestational diabetes screening).

Reference Ranges

Sex Age Range Notes
All ≥ 18 yrs < 7.8 Normal <7.8; IGT: 7.8–11.0; Diabetes: ≥11.1

Clinical Interpretation

High / Increased
Impaired glucose tolerance, gestational diabetes, type 2 diabetes.

Related Tests

HbA1c Fasting Insulin C-Peptide
Specimen
Fluoride oxalate (grey top)
Reporting Unit
mmol/L
Category
🧪 Clinical Biochemistry

⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.