In the 26th week of gestation, if the O'Sullivan test has previously given an altered result, the woman may be given the oral glucose overload test or long curve. This test will help diagnose whether the pregnant woman has gestational diabetes.
In addition, it is important to monitor the pregnant woman's blood pressure. It is possible that in the 26th week of pregnancy there may be an increase in blood pressure, but it should be monitored because, if it is very high, it may be related to preeclampsia.
Finally, week 26 of pregnancy may be a good week to perform a 3D ultrasound.