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 woman with O-negative blood group may have Rh incompatibility issues if she is pregnant with an Rh positive fetus. Complications are likely to occur in second pregnancy with an Rh positive fetus if adequate preventive measures are not taken.