Fingertip blood glucose of 9.2 mmol/L is not significantly different from venous blood glucose in the fasting state. Fingertip blood glucose after eating may be slightly higher than venous blood glucose, and the exact value should be determined by drawing venous blood. Fingertip blood glucose is not much different from venous blood glucose in fasting state. If the fasting blood glucose 9.2mmol / L, at the same time the appearance of diabetes symptoms can be diagnosed as diabetes, need to be treated as soon as possible. In the case of diabetes, it usually falls into the category of suboptimal glucose control. After a meal, the glucose reaches the venous blood after the time is late, will lead to the fingertip blood glucose value is slightly higher than the value of venous blood glucose, the specific value should be drawn venous blood test to determine. It is advisable to seek medical attention for any increase in blood glucose.