It is a blood test that is done to patients two hours after having consumed food, with the end of knowing how sugar or glucose levels occur. Preprandial is usually done before, either before eating. These two tests give parameters to the doctor to determine how the patient assimilates sugars and in what proportion they pass into the bloodstream. It is widely used especially in patients with diabetes.
It means "after lunch", and is formed by the Latin preposition post ( "then, next, subsequent" ) prandium, i ( "lunch, first meal" ). See also post- , doctor/postprandial .
POSTPRANDIAL Formed by the prefix post after , posterior and prandial relative or belonging to the first meal (pranzo is lunch in Italian ) Means after lunch . In medicine it is mainly used as well, but in strict rigor to relate some treatment for after-eating, regardless of which food is involved.