Preeclampsia is a disorder of pregnancy in which mom's blood pressure begins to rise, she develops swelling and she starts to have protein in her urine. If untreated this condition can result in seizures in mom and of course poses a great risk to the baby. One of the things that medicine has been trying to do for a long time is to determine which women will go on to develop preeclampsia and which ones will not. Recently scientists developed a test which may predict whether a woman will get preeclampsia as early as six weeks into her pregnancy. With this test the protein AVP is found in women who develop preeclampsia. It is hoped the test will be used to determine whether a woman will develop preeclampsia during her pregnancy.