A person could also do a random blood test for checking his sugar levels, here the normal range should be between 70-125 mg/dl. If the results fall outside this range frequently, then it could indicate a upcoming problem.
Lastly there is one more test called the oral glucose tolerance test or OGTT. This test is performed after giving a glucose drink to the person. This is normally done when a person, requires to get himself checked for diabetes.
In the end it is very important that a person get his glucose levels checked often, as some of the sugar related disorders can strike without any prior warning.
Also please consult your doctor or physician for the best advice and information on normal blood glucose levels and any symptoms you may be having.

