Is fasting blood sugar of 6.8 normal?

Everyone knows that if you go for a physical examination, you must stay fasting, especially when you are having blood drawn for a blood test, you cannot eat breakfast in the morning, so that the results will be accurate. In addition, fasting blood sugar levels are also a standard for testing diabetes. If the level is too high, it means diabetes. However, there is a difference between pregnant women and normal people, so the judgment is different. So is it normal if the fasting blood sugar is 6.8?

Normal fasting blood sugar value in the morning: The normal fasting blood sugar value in the morning is 3.89-6.1mmol/L. If it is greater than 6.1mmol/L and less than 7.0mmol/L, it is impaired fasting blood sugar. If the fasting blood sugar is greater than or equal to 7.0mmol/L twice, diabetes is considered. It is recommended to recheck the fasting blood sugar and glucose tolerance test. If the random blood sugar level is greater than or equal to 11.1mmol/L, diabetes can be diagnosed. If blood sugar is lower than 2.8mmol/L, the corresponding clinical symptoms are called "hypoglycemia".

Fasting blood glucose can reflect pancreatic islet function and is a commonly used indicator in clinical practice. Before measuring fasting blood sugar, diabetic patients should ensure fasting for 8 to 12 hours from after three meals of the previous day to the next morning when the test is done. At the same time, they should also ensure adequate sleep, prevent lack of sleep, avoid eating too much the day before, or be emotionally excited or engage in too strenuous activities before measuring fasting blood sugar, because these factors will cause blood sugar to rise.

The best time for the examination is between 6 and 8 in the morning. The "ultra-fasting" state after 10 o'clock will also affect the reliability of the test results.

According to the changing pattern of blood sugar in the human body, the blood sugar value is the lowest at 3:00 in the morning (generally should not be lower than 3.8mmol/L), and then the blood sugar gradually increases. For people with normal insulin secretion, blood sugar levels can be controlled within the normal range. However, due to the low insulin levels of diabetic patients, the body can secrete a variety of hormones that increase blood sugar in the morning, such as growth hormone, adrenal cortex hormone, catecholamines, etc. These hormones have a peak secretion around 8 am, so blood sugar may rise after 8 am, while these hormones are in a low secretion state in the early morning.

If you have diabetes, the examination will be divided into two times. First, check your blood sugar on an empty stomach, and then check your blood sugar two hours after a meal. Nowadays, more and more people are suffering from diabetes, so everyone should pay attention. For some people, blood sugar levels rise mainly after meals, so checking blood sugar on an empty stomach is a more standard approach.