Amniocentesis

Amniocentesis

This is a diagnostic test that helps shed light on the possibility of abnormalities of the fetus. Amniotic fluid is removed from the amniotic sac during pregnancy. Usually about 16 ml are aspirated under the guidance of an ultrasound. The fluid is then sent to the lab, and is tested for certain disorders using polymerase chain reaction (PCR), a biochemical and molecular biology technique for exponentially amplifying DNA. A full chromosome analysis can be obtained within approximately three and half weeks.