What is the normal fasting blood sugar level?

We all know that we need to fast during physical examinations, especially when having blood drawn for tests, we cannot eat in the morning, so that the results of the blood test will be most accurate. When diagnosing diabetes clinically, it is necessary to test the blood sugar content. If the blood sugar is too high, it means that you have diabetes, and this also requires a fasting blood test. Clinically, this test result is called fasting blood sugar.

If fasting blood sugar exceeds the normal range, it can be diagnosed as diabetes. Therefore, in order to better understand their physical condition, many friends want to know what the normal value of fasting blood sugar is. So, this article will introduce you to the normal value of fasting blood sugar.

Normal fasting blood sugar

①: Generally, the fasting whole blood glucose level is 3.9-6.1 mmol/L (70-110 mg/dL), and the plasma glucose level is 3.9-6.9 mmol/L (70-125 mg/dL).

②: Fasting whole blood glucose ≥6.7 mmol/L (120 mg/dL), plasma glucose ≥7.8 mmol/L (140 mg/dL), repeated measurements twice can be diagnosed as diabetes.

③: When the fasting whole blood glucose level is above 5.6 mmol/L (100 mg/dL) and the plasma glucose level is above 6.4 mmol/L (115 mg/dL), a glucose tolerance test should be performed.

④ When fasting whole blood glucose exceeds 11.1 mmol/L (200 mg/dL), it means that insulin secretion is very little or lacking. Therefore, when fasting blood sugar is significantly elevated, diabetes can be diagnosed without the need for other tests.

Normal blood sugar level after meal

1 hour after meal: blood sugar 6.7-9.4 mmol/L. The maximum value is no more than 11.1mmol/L (200mg/dl)

2 hours after meal: blood sugar ≤7.8 mmol/L.

3 hours after meal: After the third hour, the urine returned to normal and all urine sugar levels were negative.[2]

Normal blood sugar levels for pregnant women

① Pregnant women should not exceed 5.1mmol/L on an empty stomach

② One hour after a meal for pregnant women: The blood sugar level one hour after a meal is generally used to detect diabetes in pregnant women. Authoritative data show that the normal blood sugar level for pregnant women should not exceed 10.0mmol/L one hour after a meal;

③ 2 hours after a meal for pregnant women: The normal blood sugar level after a meal is generally not allowed to exceed 11.1mmol/L, and the normal blood sugar level for pregnant women 2 hours after a meal is not allowed to exceed 8.5mmol/L.

After knowing the normal value of fasting blood sugar, here we will tell you some factors that will affect the fasting blood sugar results. Some diabetic patients use some blood sugar control drugs, which will have a certain impact on the fasting blood sugar value. Other factors, such as dawn reaction, are also factors that affect the results of blood test for fasting blood sugar.