Postprandial is defined as 2-3 hours after
/post a meal
, when glucose
plateaus in the bloodstream. Thus, it serves as a
test of whether a
person may have diabetes, or of whether a person who has diabetes is successfully controlling their glucose levels. At 1 hour glucose is still on the rise not providing an accurate assessment. Another example is an OGTT for diabetes screening, the most important sample is the 2 hour sample.