2 hours after a meal should be less than 7.8 mmol/L, so 8.4 mmol/L is not normal and may be diabetic.
Fasting is less than 6.1 mmol/L and 2 hours after a meal should be less than 7.8 mmol/L. If it is more than that, you may have prediabetes, which is abnormal glucose tolerance, a period when blood glucose levels are already higher than normal but have not yet reached the diagnostic level of diabetes. If well controlled, you may not get diabetes later.
In addition to blood glucose levels, the following criteria are used to determine diabetes: 1. If you notice that you are urinating more often than before, and that the volume of urine is also increasing, even with more foamy urine and white, sticky urine stains. Be sure to check your blood sugar.2. Eat more than before and still keep losing weight.3. Be alert to the presence of diabetes if you often have various inflammatory diseases such as skin boils, ulcers or necrosis of the lower limbs, respiratory tract infections, urinary tract infections, etc., and have difficulty in treating them, or if you have difficulty in healing wounds after trauma.4. Fatigue and weakness. Sleeplessness and lack of energy.
This is my answer to the question “Is it normal to have a blood sugar of 8.4 2 hours after a meal?