Why is fasting blood sugar always unstable❓❓❓

Diabetes is a group of metabolic diseases characterized by hyperglycemia. Hyperglycemia is caused by defective insulin secretion or impaired biological effects, or both. Long-term high blood sugar causes chronic damage and dysfunction of various tissues, especially kidneys, blood vessels, heart, eyes and nerves. As a diabetic patient, in addition to using hypoglycemic drugs to control blood sugar, the patient must also monitor and record his blood sugar level. But why the fasting blood sugar of some patients have been sometimes high and sometimes low and they are always unstable, although they have the regular life, medication, diet and exercise arrangements?

Many people misunderstand that blood glucose before breakfast is equaled to fasting blood glucose.

Monitoring intravenous blood glucose in the hospital alone is not enough to understand the patient's condition changes. The doctors cannot formulate a reasonable and effective treatment plan based on that. Therefore, patients need to monitor blood glucose daily at home. 

After many people get up every morning, they usually finish the housework such as brushing their teeth and washing their face, making breakfast, or taking care of the children, and then measure their blood sugar. Many people mistakenly think that fasting blood glucose is the blood glucose level measured after getting up in the morning and taking blood before eating breakfast. In fact, it is not.

The correct meaning of fasting blood sugar.

After a person wakes up, the body will also be in a state of preparation for activity as the brain is awake. The levels of various hormones in the body begin to actively change and the blood sugar level also changes. Especially in patients treated with insulin, the blood sugar level is more likely to rise suddenly and decline suddenly.

In fact, fasting blood sugar is not measured the blood sugar on an empty stomach only. Fasting refers to the blood glucose level measured overnight, fasting for at least 8 hours and immediately after waking up. It can reflect the function of pancreatic islet β cells and generally indicates the secretion function of basic insulin. It is the most commonly used indicator for the detection of diabetes. The normal value should be less than 100mg/dl. If it is between 100-125mg/dl, it is pre-diabetes. If it is above 126mg/dl, it is diabetes.

Therefore, the first thing a diabetic patient should do after waking up is to wash his hands with warm water and then immediately check and record blood sugar. In this way, the fasting blood glucose can be measured accurately. If the fasting blood glucose is measured and there is still some time before breakfast, you can also compare the daily morning fasting blood glucose with the results of the pre-breakfast blood glucose measurement. It can provide a reference for adjusting medication in the future.

Why do the blood sugar before breakfast still need to measure even if the fasting blood glucose was measured?

The patient measures the pre-meal blood sugar can understand the blood sugar changes between meals. Without changing the dosage of drugs, the patient can rely on adjusting the type of food and the amount of food that he eat to ensure a stable blood sugar after a meal.

👉Only by accurately detecting blood sugar, the doctors can adjust the patient's medications and living habits reasonably and accurately. It also can help patients find problems at any time and go to the hospital for medical treatment in time. Accurate blood sugar testing can reduce the risk of diabetes complications. Good blood sugar control can improve the quality of life of patients and improve their physical condition.