Do you know how to use the blood glucose meter? Blood glucose meter has become a necessity for many diabetic patients at home because it is convenient, fast and simple to use, but there are certain requirements for the use of blood glucose meter, only the correct use can largely avoid errors and help clinicians to formulate the correct treatment plan. Avoid error one: after disinfecting the finger with alcohol, wait until it is completely evaporated and dried before taking blood; avoid error two: before taking blood, it is better to wash hands with warm water, massage the finger to ensure sufficient blood collection, and do not squeeze the finger with force; avoid error three: check whether the test paper is expired or invalid, pay attention to the use of the test paper in the warranty period of the single package, and pay attention to the warranty period of the tube and prevent moisture. The test paper is usually ivory white, once it is discolored, it should be replaced with new test paper; Avoid errors: Insufficient power of the blood glucose meter will also cause errors in blood glucose detection, and the new battery should be replaced in time; Avoid errors: The temperature of the environment where the blood glucose meter is used must be within the required range (temperature 5℃~40℃, relative humidity <80%).