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.
1 If the mother is Rh-negative and the father is Rh-positive, there is a good chance the baby will have Rh-positive blood. 2  Rh sensitization can occur. 3  If both parents have Rh-negative blood, the baby will have Rh-negative blood. 4  Since the mother's blood and the baby's blood match, sensitization will not occur.