Five hours after lunch blood glucose 7.8mmol / L may need treatment, it is recommended to improve the fasting blood glucose and two hours after meal blood glucose and other tests, once diagnosed with diabetes need to be timely treatment.
The blood sugar five hours after lunch does not belong to the fasting blood sugar, but generally five hours after eating the blood sugar concentration can reach the concentration of fasting blood sugar, so the normal range of five hours after meal should refer to the fasting blood sugar, that is, 3.9~6.1mmol/L, so this time the five hours after lunch blood glucose 7.8mmol/L is on the high side.
But only rely on the five-hour postprandial blood glucose is not able to diagnose diabetes, want to diagnose diabetes recommended to improve the fasting blood glucose and two hours after the meal blood glucose and glycated hemoglobin.
If there are diabetes typical “three more and one less” symptoms (drinking, urinating, wasting), to meet the fasting blood glucose 7 ≥ mmol / l, or 2 hours after the meal blood glucose ≥ 11.1 mmol / l, or random blood glucose ≥ 11.1 mmol / l, or glycated hemoglobin ≥ 6.5% of any of them can be diagnosed as diabetes. If there are no symptoms of diabetes, two plasma glucoses meeting these criteria are required to confirm the diagnosis.
A blood glucose of 7.8 mmol/L five hours after lunch may require treatment, and it is advisable to seek medical attention if you have an abnormal blood glucose level or if you suspect you have symptoms of diabetes.