Tincture of cannabis. Tincture of cannabis, sometimes known as green dragon, is an alcoholic extract of cannabis. Cannabis tinctures are used in the production of specific extracts, like Nabiximols. Contents.
The Rh factor test is done during pregnancy to identify a woman's Rh factor. In some cases, the baby's father might need an Rh factor test, too. During pregnancy, problems can occur if you're Rh negative and the baby you're carrying is Rh positive. Usually, your blood does not mix with your baby's blood during pregnancy.
But during pregnancy, being Rh-negative can be a problem if your baby is Rh-positive. If your blood and your baby's blood mix, your body will start to make antibodies that can damage your baby's red blood cells. This could cause your baby to develop anemia and other problems. How the Test Is Done. The Rh factor test is a simple blood test. It wonât harm you or your baby. What to Know About Test Results. If you are Rh-negative and your baby is Rh-positive, try not to worry. At around 28 weeks, your doctor will give you a shot of Rh immunoglobulin (RhIG). This drug stops your body from making antibodies for the rest of your pregnancy.