Diagram of the use method of blood collection needle
1. How to use the disposable blood collection needle of the blood glucose measuring instrument
1.1. Unscrew the cap of the lancing pen, and put the disposable lancet into the lancing pen.
1.2. Unscrew the maintenance cover of the disposable lancet, and put the cap back on the lancet.
1.3. Select the injection depth, and adjust the position of the injection depth at the tail of the lancet.
1.4. Complete the spring yellow adjustment rod and load the disposable blood collection needle.
1.5. Close to the blood collection site, press the "release function key", hear a rattling sound and puncture the skin with a disposable blood collection needle, and blood collection can be performed.
Strictly speaking, disposable blood collection needles cannot be used repeatedly. Once the disposable blood collection needle is used, its needle tube is no longer sharp, and the needle tube will become more and more blunt with the increase of the number of uses. When blood is collected, the pain will increase due to the dull needle tube. It should be noted that the used disposable blood collection needles are prone to bacterial growth, which may immediately damage the health of the body. Therefore, after the blood glucose test is completed, the used test paper and disposable blood collection needle should be disposed of properly immediately.
2. Operation steps of blood glucose meter
2.1. Before using the blood sugar measuring instrument, be sure to check whether the various functions are normal, whether the test paper has expired, and whether the test paper number is consistent with the blood sugar measuring instrument. A box of test paper has its own serial number, so it is necessary to adjust the experimental instrument according to the test paper number before accurate measurement.
2.2. After the blood glucose measuring instrument is adjusted, it is necessary to install the disposable lancet in the lancet, and then adjust the depth of the disposable lancet according to the thickness of the skin.
2.3. Clean the hands with warm water or masculine soap, and rub the fingers that are ready for blood collection repeatedly until the blood circulation is varied.
2.4. Sterilize the finger pulp with 75% alcohol and let it dry. Turn on the main power switch of the blood glucose measuring instrument, use a blood glucose measuring instrument that sucks blood physically, take a piece of test paper and insert it into the machine; use a blood sugar measuring instrument that is bleeding, take a piece of the test paper and hold it in your hand; the fingers should not touch the test paper for inspection After removing the test paper, close the cover cylinder tightly.
2.5. The lancing pen is close to the finger pulp, lightly press the main switch of the yellow power supply, and inject the needle pulp. It is best to take blood from both sides of the fingers, because of the variety of blood vessels and less nerve endings, not only painless but also abundant bleeding, and it is not easy to affect the results due to insufficient bleeding. Excessive extrusion processing is not necessary to prevent the integration of tissue fluid extrusion molding and blood sample collection, resulting in slightly lower blood glucose test values.
3. How to choose a blood glucose meter
3.1. Look at the price: The current blood glucose measuring instruments all have the basic function of testing blood glucose indicators, and you can choose cost-effective types, but you cannot give up the quality of the blood glucose measuring instruments as the cost. Some blood glucose measuring instruments can also store the data information of multiple tests, and even transfer such data to a computer for analysis, but the price is expensive and should be selected according to needs.
3.2. Accuracy: Due to the different detection methods, there is a difference between the reference value of the blood glucose measuring instrument using the finger whole blood test and the reference value of the venous blood using the hemocytometer in the hospital. Generally speaking, the detection accuracy of blood glucose meter is worse than that of blood cell meter. But blood glucose measuring instrument is not a common tool for diagnosing diabetes, it is important to grasp the changing trend of blood glucose index and the approximate control level. However, in the test results of blood glucose measuring instruments, the detection error of the same blood is generally less than 0.6 mmol/L, and at least the accurately measurable blood glucose index should exceed 1.1 mmol/L.
3.3. Look at the effect: When purchasing, pay attention to the memory capacity specification and whether there is extra time and time, because the storage results without time and time will lead to the inability to distinguish between postprandial blood sugar and fasting blood sugar. In addition, after the test, the memory ability storage of test results is beneficial to grasp the changes of blood glucose indicators in patients over a period of time. Therefore, proper storage capacity is very necessary.
