FETAL BLOOD SAMPLING (FBS)
Is also referred to as Cordocentesis. It involves the introduction and aspiration of fetal blood from the fetal umbilical cord, or liver under continuous ultrasound guidance.
It is a second trimester procedure usually done after the 18th week. It is very useful in the management of rhesus isoimmunization, when the fetal blood will be taken to determine the blood level as a measure of severity of the condition and also to transfuse blood when necessary.
