Why do I have to fasting to measure my blood sugar? Is it OK to monitor blood glucose for a long tim

With the continuous progress of science, people have more methods and instruments for accurately grasping their physical condition. Measuring blood sugar is a very common test method used to determine whether the person being tested has diabetes or high blood pressure. But why do you have to fasting to test your blood sugar?

First of all, it is to prevent the misjudgment of the situation that after eating food, the food is digested and the blood sugar in the body rises.

Because the eating conditions are better now, people start to overeat and don't care about their dietary concerns. As a result, I have suffered from some diet-related problems, and diabetes is a relatively common case. Everyone should know that the essence of diabetes is that the insulin in the body is abnormal, so that the glucose broken down by food is not converted into nutrients needed by the cells.

The blood sugar concentration in the body is very high, but the cells cannot absorb it, so that the cells keep transmitting the idea of eating in the brain, and it also causes the situation of eating too much but being very thin. Therefore, when we test diabetic patients, if the blood sugar concentration in the body is higher than the normal concentration, we can judge whether they have diabetes, but if they are not fasting, the blood sugar in the body must be higher than the normal concentration, so the blood sugar must be measured on an empty stomach.

From the above, we can clearly understand how serious diseases such as diabetes are, and if we have diabetes caused by our eating habits, it is very painful. Therefore, we must pay attention to our eating habits in our daily life, and we must not overeat, and we must determine it according to our own situation. And we must pay more attention to health news, see if we have some characteristics of the disease, and seek medical examination in time.

Finally, I would like to tell you that every requirement and every medical order of the doctor has rigorous scientific connotation and deep significance. We can't judge whether it is reasonable or not based on our own subjective consciousness, just like we must have an empty stomach before testing blood sugar, the doctor does not want us to eat, but is afraid of giving us a kind reminder of misjudgment.

Now that the range of diabetic people is gradually expanding, the step of measuring blood sugar is an indispensable part, so many sugar friends are curious, why do you want to measure fasting blood sugar when measuring blood sugar?

Why is it important to measure postprandial and fasting blood sugar when testing blood sugar?

Fasting blood sugar refers to the blood sugar level that is expressed by not eating again for 8-10 hours after the last meal. Most of the tests start around 5-6 a.m. The main purpose of checking fasting blood sugar is to know how the blood sugar behaves when the body is not eating any food.

Fasting blood glucose can reflect the basal insulin level of diabetic people, and can also reflect the glucose output of the liver, which can effectively understand blood sugar and judge diabetes.

However, fasting blood sugar also has certain drawbacks, which are prone to errors, and will miss the population with the critical value of diabetes, that is, the pre-diabetes population, which is not conducive to effective screening of the diabetic population.

The so-called postprandial blood sugar is to drink some glucose solution appropriately after measuring fasting blood sugar, and regularly test blood sugar levels within two hours after meals.

The significance of postprandial blood sugar is also very significant, postprandial blood sugar fluctuations are relatively large, and the blood sugar detected at this time will be more conducive to judging the condition of diabetes.

It is necessary to know that fasting blood sugar is not high, which does not mean that blood sugar is stable, and it is necessary to combine postprandial blood sugar, and it is necessary to conduct multiple tests to better understand the blood sugar situation and regulate blood sugar more effectively.

How do I measure fasting blood sugar?

The best time to test fasting blood sugar is to test it as soon as you get up, and the best time to test it is 6:00 a.m. to 8:00 a.m., and you don't need to use hypoglycemic drugs, skip breakfast, or exercise before the test.

Note: Blood glucose measured before lunch and dinner cannot be called fasting blood glucose, so blood sugar measured without meals is not called fasting blood glucose.

This is the importance of fasting blood sugar testing, many people often do not listen to the doctor, but in the end, they can only harm themselves.

This is because fasting blood sugar is a better indicator of the level of insulin in a person's body. What is required on an empty stomach is to go about 12 hours without eating, so that there are no external factors that interfere with the secretion of insulin in the body, so the measured insulin level will be more accurate.

Fasting blood sugar and postprandial blood glucose are both important indicators for diabetic diagnosis, but when you do a check-up in the hospital, most of them are healthy for fasting blood sugar. In fact, the rate of missed diagnosis of fasting blood glucose is relatively high, and postprandial blood sugar is more accurate. Why do hospitals do more fasting blood sugar and less postprandial blood sugar?

Because the blood sugar measured on an empty stomach is more accurate. It is not allowed to take a blood sugar test after eating because there are things that raise blood sugar in the food you eat.

Blood sugar rises first after fullness, which is difficult to compare with hyperglycemia.

Fasting blood glucose is an important indicator for diagnosing diabetes. Dr. Li Chunjun, director of the Health Management Center of our city's People's Hospital, recommends at least fasting blood glucose monitoring in annual physical examinations for healthy middle-aged and young people who should be further screened for high fasting blood sugar for diabetes. Diabetic patients with poor fasting blood sugar control need to find **, symptomatic**, and cannot simply and blindly change dressings.

Fasting blood glucose testing emphasizes that the best monitoring time for night testing is between 6 and 8 o'clock, fasting blood glucose (GLU) refers to not eating any food (except water) for at least 8-10 hours after fasting, and blood sugar is measured before breakfast, which is the most commonly used indicator for diabetes diagnosis and **. It reflects the function of pancreatic islet cells and generally indicates the secretion of alkaline insulin. Fasting blood glucose in normal people

greater than, less than, impaired fasting blood glucose; If fasting blood glucose is 2 times, it is diabetes. Fasting blood glucose should be at 6:00 a.m. - 8:00 a.m

00 measurements. Do not take hypoglycemic drugs, skip breakfast, do not exercise, and drink water appropriately before blood collection. If the fasting blood draw time is too late, the monitoring results may be too high or too low due to the physical adjustment in the morning, which is difficult to truly reflect the patient's current situation or the best effect.

"People who love sugar tend to notice the characteristic of not eating for 8 to 10 hours and ignore the nighttime fast. When leaving the clinic in the afternoon, patients often ask for fasting blood sugar measurements because they don't eat after breakfast. In fact, the properties of nocturnal fasting are very important.

Morning fasting blood glucose measurement has special physiological significance.

From 5 a.m. to 7 a.m., the human body secretes growth hormone, glucocorticoids, adrenal hormones, etc., and begins the day. Normally, glycemic hormones and hypoglycemic hormones restrict each other to keep the release of glucose in the liver in a balanced state and maintain the normal range of blood glucose. In the state of diabetes, due to insulin resistance and decrease in quantity, the function of glucotropic hormone can not be balanced, and the liver glucose metabolism increases, so the blood sugar increases, which becomes an important indicator of diabetes diagnosis and is also the evaluation criterion for the efficacy of drugs for diabetic patients. ”

Do not fasting for a long time; Because long-term fasting will lead to unbalanced nutrition in the body, and it is not possible to measure blood sugar indicators well, it is recommended that it is best to control blood sugar between 6:00 and 8:00, and the indicators measured at that time are very accurate.

No; Although the fasting blood sugar test is relatively correct, the people who ignore the blood sugar threshold value need to be measured on an empty stomach and once after a meal to determine whether the blood sugar is at a normal value.

No, you must measure it after and before your meal, so that you can accurately understand your blood sugar level.

1. Temporarily avoid energy intake: The subject should have no energy intake for at least 8 hours, including carbohydrates, fats, and proteins, and should not drink beverages. If you drink only a small amount of water, it is usually unaffected;

2. Ensure adequate sleep: If the examinee has not slept all night and has a poor mental state, it can affect the fasting blood glucose result;

3. Maintain a stable state of the body: If the subject suffers from acute pneumonia, or is in a state of surgery, trauma, or stress, the fasting blood sugar measurement will also be affected at this time. Because in a state of stress, the body has a strong protective response, which can lead to an increase in hormone levels and affect fasting blood sugar;

4. Avoid the presence of major diseases: such as hyperthyroidism and acromegaly, the blood sugar measurement of the subject may be affected at this time.

Try not to eat after 8 p.m. the night before, and don't drink water after 12 p.m.

Hello, fasting blood glucose is measured after you get up in the morning, and without doing any exercise, it is recommended that it is best between 6-7 am in the morning.

Suggestions: At the same time, it should be noted that:"Fasting"This fasting is when you don't eat anything after 10 p.m. That is, the measurement time must reach 8 hours or more from the previous eating time, otherwise it cannot be counted as fasting.