Yes, its extremely high; and that high can be dangerous for you. If you are already diagnosed diabetic, and your blood sugars are frequently this high, see your doctor and look at more aggressive treatment options. If you have not been diagnosed as a diabetic, you should still see a doctor for this.Request your doctor do an a1c (average of your last 6 months sugar) then after they get the results they will know where to go from there for treatment options.