The 2-hour OGTT diabetes threshold is which of the following?

The 2-hour OGTT diabetes threshold is which of the following?

• A. ≥12.0 mmol/L
• B. ≥9.5 mmol/L
• C. ≥11.1 mmol/L
• D. ≥10.0 mmol/L

Answer: (C)

In diagnosing diabetes with the oral glucose tolerance test, you measure plasma glucose 2 hours after a 75 g glucose drink. If that 2-hour value is 11.1 mmol/L (200 mg/dL) or higher, it meets the criteria for diabetes. Values below that cut point can indicate normal glucose or impaired glucose tolerance, but the diabetes threshold is specifically 11.1 mmol/L. The other numbers shown are not the diagnostic cutoff for the 2-hour test.

In diagnosing diabetes with the oral glucose tolerance test, you measure plasma glucose 2 hours after a 75 g glucose drink. If that 2-hour value is 11.1 mmol/L (200 mg/dL) or higher, it meets the criteria for diabetes. Values below that cut point can indicate normal glucose or impaired glucose tolerance, but the diabetes threshold is specifically 11.1 mmol/L. The other numbers shown are not the diagnostic cutoff for the 2-hour test.