Oral glucose tolerance test (OGTT): In this test the blood glucose level is measured in a person after drinking 75 grams of glucose solution. The test is done after at least 8 to 12 hours of fasting. The test can help to diagnose diabetes and pre-diabetes.lood tests are done to diagnose diabetes. The following tests are done for diagnosis: 1  Fasting plasma glucose (FPG). 2  Oral glucose tolerance test (OGTT).
The three reforms that President Theodore Roosevelt created was for  consumer protection, business regulation and trusts and  labor-capital relations.
As a result, Congress passed, and the states ratified, the 16th Amendment, giving Congress the power to levy income taxes. The amendment allowed Woodrow Wilson to sign the Revenue Act of 1913 into law, establishing a progressive income tax.