Is The Result Of Blood Glucose Meter Accurate? What Should Diabetic Patients Pay Attention To? The Doctor Told You The Rules

Many patients will ask a question when they come to outpatient consultation,

"When I measure blood sugar, I operate normally. Why are the results so different?"

"The same drop of blood, the same time, the test paper is no problem, why the blood sugar results will be different?"

This is the blood glucose data taken by a patient. There are 1.7mmol/l and 2.5mmol/l blood glucose data. From the result alone, it is proper hypoglycemia, but the patient does not feel any discomfort. For young patients, the oral drug is metformin, so it can be sure that the blood glucose measurement is wrong, so the blood glucose meter is very important. Spent money, suffered pain, made such a big determination to prick their own needle, but got an inaccurate result, the heart of depression can be imagined. After that, she may have more concerns about blood glucose measurement, which may affect her blood glucose control. So why is the result of blood sugar inaccurate? This is a topic that we need to talk about.

If the patient has no discomfort, he / she will not see a doctor, which indicates that there is a misunderstanding in the detection and treatment of the patient

Today, the development of blood glucose meter has brought great convenience to diabetes patients. Thanks to Tom Clemens of the United States, the discoverer of blood glucose. He began to study blood glucose meter in 1966. After more than 50 years of development, the price of blood glucose meter is about 4100 yuan from the beginning, to the present gift price, dozens of yuan and hundreds of yuan can be bought. And the method of measurement is more and more simple, so the invention of blood glucose meter is the good news for diabetic patients. Therefore, it is necessary to understand the development history of blood glucose meter.

Development history of blood glucose meter

The first generation of blood glucose meter is a water washed blood glucose meter. When it is used, a drop of blood from the patient needs to be dropped on the test paper. After one minute, the blood stains need to be washed off and compared with the colorimetric card. The error of blood glucose value obtained is relatively large. Due to the complex operation, it is generally used in hospitals. The length of the blood glucose meter is about 25 cm, and the power supply needs to be connected.

In the past, the blood glucose meter was very cumbersome, cumbersome and painful

The second generation of blood glucose meter doesn't need to be rinsed. It only needs to wipe the red blood cells on the test paper to read. When the volume becomes smaller, it begins to enter the family of diabetic patients. However, the blood volume needed is about 10-15 μ L, and it takes 1 minute.

The third-generation blood glucose meter, such as the one touch of Johnson & Johnson company, is easy to operate. It needs one drop of blood, which is easy to operate and accurate. It was launched in 1987 and soon accepted by patients, and began to develop rapidly all over the world. This also makes Johnson & Johnson the world's largest manufacturer of blood glucose meters. Its operating principle is glucose oxidase method, and the reaction is obviously affected by temperature.

The operation principle of the fourth generation blood glucose meter is electrochemical method, which uses the principle of current signal generated in the detection process to reflect the blood glucose value. The volume of blood glucose meter is smaller, the result appears quickly, and it is convenient to use. At present, almost all the blood glucose meters are electrochemical blood glucose meters

The fifth generation of blood glucose meter has begun to appear, its blood collection parts are not limited to fingertips, and all parts of the body can collect blood, the blood demand is only 0.3 ml, and the damage to patients is smaller.

Why do we measure blood sugar?

In the treatment of diabetes, blood glucose monitoring is very important. Monitoring blood glucose can help us

Eat clearly, live happily: measuring blood sugar can help you understand the extent of blood sugar increase in different diets, and know which foods will cause a significant increase in blood sugar, so as to reduce the intake of those foods. Which foods have little effect on blood sugar? You can choose more of them in the future diet.

Blood glucose meter can guide the direction of our diet and medication

Let the exercise be persistent: before and after the exercise, the blood glucose test can understand the effect of exercise on blood glucose, and can intuitively see the blood glucose changes brought by exercise, so as to stick to exercise.

Monitor at any time to prevent the disease in advance: in the process of treatment, if you feel uncomfortable, you can detect the blood sugar at any time, understand the change of blood sugar, eliminate some critical diseases such as myocardial infarction, serious arrhythmia, etc., and timely deal with hypoglycemia.

Possible problems in blood glucose measurement

Blood glucose meter is a kind of electronic instrument for measuring blood glucose level, which can be operated by patients themselves and is convenient and quick. It can help patients to monitor their blood sugar, understand their condition, adjust medication, prevent and delay complications.

After many patients purchase the blood glucose meter to measure their blood glucose, they have a question: does the blood glucose value fluctuate from high to low? Is the home blood glucose meter accurate? Can the measured value reflect the real blood glucose situation in the body?

Yes, the blood glucose meter is an electronic instrument. It's just an electronic instrument. Can they really give us an accurate result to know our blood glucose situation?

These operation specifications and precautions need to be known:

First of all, we should ensure the quality of blood glucose meter

This is very important, and it is also a prerequisite to ensure the accuracy of blood sugar. At present, there are many manufacturers of blood glucose meter, both at home and abroad. The price is high and low, and the quality may vary. So how to choose a good quality blood glucose meter? Many diabetic friends ask me this question.

In fact, during the use of the blood glucose meter for many years, many diabetic friends brought their blood glucose meter and blood glucose data to me. I think the blood glucose meter is an electronic instrument that can pass the national acceptance, and the blood glucose meter with quality control detection is reliable.

But any blood glucose meter needs to be compared with the blood glucose in the blood biochemical results to determine

There are also different errors or deviations in sample storage time and mental state of patients. Blood glucose meter is a kind of testing tool, which will cause deviation after long use. There is no point in comparing different blood glucose meters.

To know whether the blood glucose meter is accurate, the simplest and effective method is to compare with the biochemical results of the hospital, which is recognized and the only recommended way.

The judgment standard is: the whole blood test results of the blood glucose meter at the same part of the patient and the blood plasma test results of the bio meter meet at least 95%. When the blood glucose concentration is less than 5.6mm0l/l, it should be within the range of ± 0.83.

For example, if the blood glucose meter tests 3.8mmoi/l, the test results of the blood glucose meter should be between 2.97mmol/l and 4.63mmol/l, all of which are acceptable. When the blood glucose concentration is ≥ 5.6mm0l/l, the test result of the blood glucose meter should be within ± 15%.

For example, the biochemical result is 10mmol / L, and the test result of blood glucose meter should be between 8mm0| / L and 12mmol / L. This error range will not affect the judgment of clinical medication.

So if sugar friends want to know the accuracy of the blood glucose proposal, they can use the test results of the blood glucose meter on that day to compare with the biochemical test results to know whether the blood glucose meter is accurate.

It is important to note that:

Omnidirectional detection can effectively reduce and delay the occurrence of complications

Even if you measure blood glucose every day, the blood glucose control is also very ideal. It is still recommended that you have a monthly check of weight, blood pressure and urine routine, a quarterly check of glycosylated hemoglobin, foot nerves and blood vessels, a yearly check of blood lipid, liver function, renal function, urinary protein creatinine ratio, ECG and fundus. Because even if the blood sugar is normal, the incidence of complications is higher than that of non diabetic patients, and the occurrence of these complications is silent, when you feel abnormal, it is late.

Blood glucose monitoring is very important. We should choose a blood glucose meter with good quality and accurate results, and carry out it according to the operation standard,. In clinical practice, it is generally recommended that patients be monitored in pairs before and after meals to see the overall fluctuation of blood sugar. Do not worry about the single blood sugar value, and adjust the treatment plan and dosage at will. Timely communicate with professional doctors and actively cooperate with the treatment.