The 75g glucose test, also known as the Oral Glucose Tolerance Test (OGTT), is a diagnostic tool used to assess how well your body processes glucose. It's primarily used to diagnose diabetes and gestational diabetes.

1. Low Risk: Normal glucose levels at all time points, including 30 minutes.
2. Moderate Risk:Elevated glucose levels at 30 minutes but normalizing at later time points could suggest an intermediate risk for developing diabetes.
3. High Risk:Persistently high glucose levels at 30 minutes and subsequent time points indicate a high risk for diabetes and other metabolic disorders.

Normal Range for Plasma Glucose at 30 Minutes

The normal range for plasma glucose levels at 30 minutes post-ingestion of the 75g glucose solution can vary depending on the lab and guidelines, but generally:

• Normal: Less than 200 mg/dL (11.1 mmol/L)
• Intermediate Range: Levels between 200 mg/dL and 250 mg/dL (11.1 to 13.9 mmol/L) might be considered intermediate or indicate impaired glucose tolerance.
• High:Levels above 250 mg/dL (13.9 mmol/L) could indicate a higher risk for diabetes or other metabolic disorders.

1.Normal Glucose Tolerance: If the plasma glucose level at 30 minutes is within the normal range and other time points (1 hour and 2 hours) are also within normal limits, it indicates normal glucose metabolism.

2.Impaired Glucose Tolerance (IGT): Elevated levels at 30 minutes and/or other time points but not high enough to be classified as diabetes might indicate impaired glucose tolerance, a risk factor for developing diabetes.

3.Diabetes:Significantly elevated glucose levels at 30 minutes and/or other time points, especially if confirmed by repeat testing, suggest diabetes.

Specimen and Sample Type

- Specimen:Blood
- Sample Type:Plasma