With the increase in the number of elderly diabetic patients, patients then need to frequently monitor blood glucose to control their condition, how to use the blood glucose meter has become a more concerned about a problem. The following is my collection of instructions on how to use and select a glucose meter, I hope it will help you.
How to use a blood glucose meter
1, disinfection
The skin preparation of the fingers before the test is recommended to use warm water and soap to clean the fingers, or alcohol swabs to disinfect, both methods. The American Diabetes Association recommends washing hands with soap and running water as skin preparation before finger blood glucose testing. But no matter which method must be remembered: the finger must be in a dry state to take blood, that is to say, warm water and soap wash to cool and dry fingers, alcohol disinfection to wait for the alcohol to completely evaporate before using the blood pen to prick the finger, to ensure the accuracy of the measurement. It should be emphasized that it is not appropriate to use iodine-containing disinfectants (such as iodine volts, iodine) to disinfect the skin.
2, away from the source of interference
Remove the blood glucose meter, blood collection pen, blood collection needle, test paper bucket, placed on a clean desktop, do not have a TV, cell phones, microwave ovens and other electronic equipment nearby to prevent interference. Blood glucose meter use to avoid placing the instrument in the electromagnetic field (such as cell phones, microwave ovens, etc.) nearby, so as not to cause interference with the results.
3, loaded with a blood collection needle
Remove the blood collection pen by loading the blood collection needle, on the depth of the grade, pay attention to the smaller the number of the zap the more shallow. Pull the spring of the blood collection pen on the gear. The first use can be adjusted to the middle gear next time according to the actual situation in the appropriate depth adjustment.
4, load the test paper
Open the test paper barrel to remove the test paper, pay attention to remove the barrel immediately after the lid, shall not be exposed to air for a long time, insert the test paper into the blood glucose meter, in the process of taking and inserting the test paper fingers can not pinch the blood suction port and the plug part, the temperature of the finger will affect the results. Blood glucose test strips, such as the need to correct the code requirements, must correct the blood glucose meter display code and test strip code consistent, inconsistent results are not allowed. Test strips can only be used once, can not be reused, a suction blood test strips can not be replenished, replenishment of blood results are not accurate.
5, blood collection
After sterilization, massage the fingers to increase blood circulation, arm down for 30 seconds, in order to make the blood flow to the fingertips. Use the thumb to tighten the interphalangeal joints to collect blood, and then use the blood collection pen to pierce the skin on the side of the fingertip to take an appropriate amount of finger blood, according to the thickness of the finger skin to choose the depth of puncture. To reduce the pain, puncture the side of the finger, not the middle of the finger. Do not squeeze the skin after pricking, so as not to mix the tissue fluid into the blood sample, resulting in bias test results.
6, blood
The blood drop type of test paper to the blood droplets lightly touch the sampling area can be, blood suction type of test paper suction mouth aligned with the blood sample, contact a little bit on the blood glucose meter will automatically inhaled. Where the blood-sucking type of test paper shall not drip blood upwards, to be blood glucose meter sound test paper sucked full of blood after the machine to take away, do not take away in the blood glucose meter did not sound, and do not have a sound still do not take away, this will affect the results. Test paper to obtain blood samples should be placed on the desktop, can not be shaken, to be the results come out after pulling out the test paper automatically shut down, do not pull out the test paper will consume electricity.
7. Readings
After the blood is dropped in, a sound is heard from the meter, and the flashing horizontal lines on the meter screen disappear altogether, the results of the blood glucose test shown will be automatically recorded in the meter.
Precautions for the use of blood glucose meter
1, blood glucose meter is only used for blood measurement;
2, do not place in direct sunlight or high temperature and humid places, do not drop the machine to the ground and avoid collision, do not disassemble or repair, transformation of the blood pressure meter's body or the wristband;
3, the blood glucose meter must be used in conjunction with the use of the same brand of test strips, and can not be used in a mixed way. Please do not split the test strips and use them within 3 months after opening (within the validity period). Some blood glucose test strips are different from each batch, you need to input the barcode number of the new test strips into the instrument before changing the test strips, otherwise it will affect the test results;
4. Please do not use mobile phones or other devices that generate electromagnetic interference near this product;
5. Please use No.7 Manganese or Alkaline dry cell batteries (2 batteries), don't use other batteries, and the old and the new batteries, the types of batteries that are different. Please do not mix them! Please take out the dry battery when it is not used for a long time (more than 1 month);
6. Sterilize the blood with alcohol before the test, and take the blood after the alcohol dries, so as not to mix the alcohol into the blood. Iodine can not be used to disinfect, because iodine will have a chemical reaction with the test agent on the test paper, affecting the accuracy of the test;
7, the patient through the results of the measurement of self-judgment, self-treatment is very dangerous, do not self-diagnosis or without the permission of the physician to change your medical treatment;
8, the amount of blood must be enough to completely cover the test area of the test paper. If you find that the amount of blood is too small, do not squeeze your fingers, otherwise it will mix with the tissue fluid and interfere with the blood glucose concentration. In order to ensure that the amount of blood collection is sufficient, before the hand can be soaked in warm water, and then drooped for 30 seconds. In addition, the needle should be pressed and then ejected to avoid shallow insertion;
9. Do not touch the test strip when your hands are wet or dirty. Do not consume the desiccant in the test strip canister.
The blood glucose meter selection skills
With the increasing number of diabetic patients, and because diabetic patients have various organs and tissues of the complications of diabetic patients, diabetic patients all over the hospital departments, then the nursing staff is faced with the problem of monitoring the patient's blood sugar, how to choose a suitable blood glucose meter for the use of the department of the variety of blood glucose meter is a very concerned about the head nurse of a problem.
When it comes to monitoring blood glucose, we have to mention blood glucose test strips. In the face of Johnson and Johnson, Roche, Abbott, and even national brands and many other varieties, the first thing we need to understand is that each blood glucose meter and test strips with which principle to get the blood glucose value. In fact, most of the blood glucose test strips on the market apply enzyme technology, so here we have to talk about glucose oxidase and glucose dehydrogenase.
Glucose oxidase, which is very specific for glucose, does not react with maltose, lactose, and galactose in the blood. But as the name suggests it works by ? Oxygen? But as the name implies, it works by means of oxygen, so the process of its reaction must be influenced by the presence of oxygen. Oxygen The process of reaction must be affected by oxygen. Oxygen? not only the oxygen in the air, but also the oxygen in the air. Oxygen but also the oxygen in the blood. Oxygen? Therefore, in some cases, the measurement will be biased: the test paper is easy to react with the oxygen in the air after opening, and can be used for only 3 months after opening. And should not be put together with alcohol and other volatile substances, easy to make the test paper is oxidized, affecting the accuracy of the measurement. Patients with low oxygen saturation such as asthma, smoking, emphysema, respiratory failure, chronic obstructive pulmonary disease and various cardiovascular diseases, as well as patients after strenuous exercise, if the use of glucose oxidase test strips will cause the test results to be low.