Some key elements to look for include: 1  The NFRC Label: National Fenestration Rating Council (NFRC) is a non-profit organization that administers the only independent rating and labeling system for the energy performance of windows, doors, skylights and attachment products.
At one hour, your test falls into the normal, non-diabetic range if your blood glucose remains below 200 mg/dL. Two hours after your meal, blood glucose should remain below 140 mg/dL. A level of over 200 mg/dL at two hours post-prandial -- which means after a meal -- indicates diabetes.
Blood sugar begins to rise about 20 minutes after you eat. It can peak at that time if you consumed quickly digested carbs, such as hard candy or juice. After a balanced meal containing protein, fat and fiber, blood sugar peaks about one to two hours after eating. Your blood sugar should drop back down to its lowest level two to four hours after a meal.