Question

The registered nurse (RN) is caring for a young adult who is having an oral glucose tolerance tests (OGTT). Which laboratory result should the RN assess as a normal value for the two hour postprandial result?

140 mg/dl.
160 mg/dl.
180 mg/dl.
200 mg/dl.

Answer 1

The normal two-hour postprandial blood glucose level on an oral glucose tolerance test is 140 mg/dl. This value falls within the standard normal range of 100-140 mg/100 ml mentioned for postprandial blood glucose levels.

Step-by-step explanation:

The registered nurse (RN) should assess a normal value for the two-hour postprandial result of an oral glucose tolerance test (OGTT) on a young adult. Referring to the given information, the normal range for a postprandial blood glucose level, which is measured 1-2 hours after a meal, is ideally between 100-140 mg/100 ml. Therefore, the correct answer is 140 mg/dl.

During the OGTT, a fasting blood glucose that falls between 60-90 mg/100 ml is considered normal. Following the ingestion of glucose, a normal response includes a peak in blood glucose levels within the first hour and a decline to below fasting levels due to insulin secretion. Ultimately, a normal individual's blood glucose returns to baseline within approximately 2.5 hours.