What causes a high Oral Glucose Tolerance Test (2-hour)?

Q: What causes a high Oral Glucose Tolerance Test (2-hour)?

Common causes of a high Oral Glucose Tolerance Test (2-hour): Diabetes (≥ 200 mg/dL); Impaired glucose tolerance (140-199); Gestational diabetes.

Q: What is the normal range for Oral Glucose Tolerance Test (2-hour)?

The standard teaching reference range for Oral Glucose Tolerance Test (2-hour) is < 140 (normal) mg/dL in conventional units, or < 7.8 mmol/L in SI units. This value is measured in plasma (2 h post 75 g glucose). Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.

Normal range < 140 (normal) mg/dL (< 7.8 mmol/L SI). Specimen: Plasma (2 h post 75 g glucose). See the full Oral Glucose Tolerance Test (2-hour) reference page for critical values and nursing considerations.

Above the range

Common causes of a high Oral Glucose Tolerance Test (2-hour)

Diabetes (≥ 200 mg/dL)
Impaired glucose tolerance (140-199)
Gestational diabetes

Looking for the other direction? See what causes a low Oral Glucose Tolerance Test (2-hour).

What is the normal range for Oral Glucose Tolerance Test (2-hour)?

The standard teaching reference range for Oral Glucose Tolerance Test (2-hour) is < 140 (normal) mg/dL in conventional units, or < 7.8 mmol/L in SI units. This value is measured in plasma (2 h post 75 g glucose).

Oral Glucose Tolerance Test (2-hour) reference range and specimen details
Specimen	Plasma (2 h post 75 g glucose)
Conventional range	< 140 (normal) mg/dL
SI range	< 7.8 mmol/L
Panel	Glucose & Diabetes

Full details, including nursing considerations, on the Oral Glucose Tolerance Test (2-hour) normal range page. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.

Same panel

More Glucose & Diabetes tests

C-Peptide0.8-3.1 ng/mL Glucose, Fasting70-99 mg/dL Glucose, Random< 140 (non-fasting) mg/dL Hemoglobin A1c (HbA1c)4-5.6 %