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.
A potentially dangerous condition, called Rh Disease, can result when the mother is Rh negative and the baby is Rh positive. Similar to an autoimmune condition, Rh disease occurs when the Rh-negative mother's body detects Rh factor in the baby's blood and develops antibodies to protect itself.