What happens if a patient has an abnormal result of ≥ 130-140 mg/dL after the 1-hour OGTT?

An abnormal result of ≥ 130-140 mg/dL after the 1-hour Oral Glucose Tolerance Test (OGTT) suggests that the patient may have impaired glucose tolerance or be at risk for gestational diabetes. In such a case, it is standard practice to proceed with a follow-up test, typically a 2-hour OGTT, to confirm the diagnosis and assess the full glucose response.

The 2-hour OGTT provides a more comprehensive evaluation of glucose metabolism by measuring blood glucose levels at multiple time points after glucose ingestion. This allows for distinguishing between benign glycemic responses and those that indicate diabetes or gestational diabetes.

This protocol helps ensure appropriate management based on a clearer understanding of the patient's glucose handling dynamics. The other options do not follow the standard clinical practice guidelines for addressing elevated results from the initial OGTT.