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 a mother is Rh negative and the father is Rh positive, the baby will always be Rh positive.  Rh sensitization is when a mother makes antibodies against her unborn fetusâ blood type, and causes destruction of that babyâs red blood cells.