Blood glucose meter or venous blood draw which value is higher

Clinical monitoring of blood glucose can be through two means: 1, venous blood;2, blood glucose meter monitoring blood glucose. Both of these can achieve the purpose of monitoring blood glucose. But as a diagnostic aspect, venous blood is needed to diagnose. Need to observe whether the patient medication, medication is correct, whether the need to adjust medication can be monitored through the blood glucose meter, because the blood glucose meter can be carried out at home, but also simple and convenient. Sometimes eat a certain kind of fruit or a certain kind of food, or exercise, it is necessary to understand whether eating food or eating fruit is appropriate, the amount of exercise is not appropriate, but also through the monitoring of the blood glucose meter to understand, and which value is higher, it should be said that the test indicators of the blood glucose meter may be high, it may also be low, subject to venous blood sampling. The blood glucose meter is only used as a means of monitoring.