Why is the blood sugar measured three times with a test strip and the results are different

Instrument or test strip questions:

If the difference is large for three consecutive times, more than 1 means that there is a serious problem with the instrument or test strip. Try again with a new test strip. If the new test strip still has a large error, it is a malfunction of the test strip or instrument.

You can request an exchange at the place where you bought the instrument or test strip (hospital pharmacy or pharmacy). They will contact the first staff of the manufacturer, whether it is a test strip or an instrument, the manufacturer will generally give you a replacement in order to maintain its reputation.

Problems with personal use or operation:

If the difference is within 1 for three consecutive times, it is generally a double problem of operation and blood: 1. The blood glucose measurement value of the three times is not the same, because the blood concentration in the front of the finger and the blood concentration in the last two measurements is different. If there is more serum, the next two measurements will be higher, and if it is new blood squeezed out, the next two measurements will be lower.

2. Blood glucose test strips are very susceptible to the influence of oxygen in the air, and the longer the bottled test strips or individually packaged test strips are placed in the air, the more inaccurate the blood glucose value will be. In particular, bottled test strips are generally used up within three months after opening (oxidase technology). Otherwise, the results of the blood glucose measurement will be inaccurate.

Other than that; There is also alcohol or iodophor.

and other disinfectant solutions will affect the measurement results.

So; Don't use alcohol or any antiseptic solution when measuring blood from your fingertips, just wash your hands and dry them. The first drop of blood is wiped off with a clean cotton wool and measured with the second drop of blood squeezed out. If you measure continuously, do not take out all the test strips at once, take the test strips before the second measurement, and the blood on your fingertips must also be wiped off and a drop of blood must be squeezed out again for measurement.

This way the error will be smaller.

The glucose in the blood is called blood glucose, which is an important tissue component of the human body and an important part of energy. The normal human body needs a lot of sugar every day to provide energy and power for the normal operation of various tissues and organs, so blood sugar must be maintained at a certain level in order to maintain the needs of various organs and tissues in the body. The blood sugar value is different each time, it is a normal state, and blood sugar, like blood pressure, will fluctuate at any time.

Because blood sugar is affected by many factors, such as insulin, endocrine hormones in the body, nerves, eating, etc., the blood sugar measured at different times is different.

The blood glucose meter used in this way uses blood from the tip of the finger. Fingertip blood is very sensitive, even if it is the same finger, measured at different times, with different squeezing strengths, and different sizes of blood droplets, there will be different results. It should be based on venous blood glucose.

The purpose of monitoring blood sugar at home is mainly to find out the cause of the elevated blood sugar, if it is a temporary and sudden high blood sugar, it is recommended to adjust the diet, pay attention to exercise, and observe closely. If long-term monitoring of blood sugar is still high, it is recommended to go to the hospital**. During this period, you should still pay attention to diet and exercise to control your weight.

Oral or injectable drugs should be used to lower blood sugar. Go to the hospital and complete the relevant tests to determine what kind of disease is causing the blood sugar to rise.

Is it measured at the same time in a row? Because this kind of data always carries a certain amount of uncertainty. The most authoritative indicator should be the results of a blood test done by the hospital.

The key is how long to measure blood sugar.

Is the blood glucose test strip the same model with different passwords, and the test result is the same?

Hello dear has helped you to find the results; The blood glucose test strip is the same model, the password is different, the test result is the same, and the different passwords have no effect on the test. The test strip password of the blood glucose meter is different, just to distinguish the different code paper, and it has no effect on the measurement result. When using, it should be used scientifically and reasonably according to the instructions.

Values are more accurate when used correctly. It is not only the blood glucose meter that is important to assess the accuracy of blood glucose measurement: blood collection site, blood sample volume, and blood collection time; stability and accuracy of test strips; The environment is frank, temperature and humidity; The blood oxygen concentration, hematocrit rate, and the speed of glycolysis will affect the accuracy of the blood glucose value.

The above is my reply, I hope I can help you, I wish Nianqin a happy <> with your baby

This is normal.

First of all, the blood sugar level of different parts of the human body is different, and the blood sugar level of the human body fluctuates from moment to moment.

Even if you use the same finger and the same drop of blood in two tests, because of blood sugar fluctuations, differences in operation, and systematic errors in the blood glucose meter.

will result in different blood sugar levels.

It's normal for blood sugar results to be different twice within 10 minutes.

It's normal, even if you measure the blood sugar of different fingers at the same time, it will be different. Blood sugar levels change all the time, from one minute to the next, and blood sugar in different parts of the body. You should not be the same part of the same finger twice.

A 10% 15% difference between two test results is not considered abnormal, and is generally considered to be within the tolerance of the instrument.

In the case that there is no quality problem with the blood glucose meter itself, if the difference in the readings given exceeds this standard, it is necessary to consider whether there are other problems, such as whether the ** is clean, whether the blood volume is sufficient, and so on. If you don't have enough blood for the first time and squeeze it too hard, causing the tissue fluid to enter the blood, the result will be low.