What do the oral glucose tolerance test results mean?
A blood glucose of 140mg/dL will identify 80% of women with gestational diabetes. When that cutoff is lowered to 130mg/dL the yield increases to 90%. If your blood glucose level was greater than 130 mg/dL, your provider will likely recommend you take another diabetes screening test that requires you to fast (not eat anything) before the test. During this second test, called the 100-gram oral glucose tolerance test, your blood glucose level will be tested four times during a three-hour period after drinking the cola-like drink. If two out of the four blood tests are abnormal, you are considered to have gestational diabetes.
