See Amniocentesis for description of collecting amniotic fluid. See preparation instructions for amniocentesis. No changes necessary. No changes necessary. Roll up sleeve only.
Discomfort disappears when the test is finished.
Sterile, disposable equipment prevents contamination or spread of infection. There is no risk of becoming infected with the hepatitis virus, AIDS virus or any other infecting germ. If test is to be done before the baby is born, see Amniocentesis. If test is done on a newborn, blood is taken from the arm, neck or umbilical cord. This procedure is safe.