laboratory diagnostic - tumor markers - AFP - Alpha-fetoprotein - amniotic fluid,' amniotic fluid, 3 ml. If possible, amniotic fluid before centrifugation, essential in case of haemorrhagic fluid. ALWAYS attach: the pregnancy data: date of pregnancy, number of foetuses, number of sacs sampled in case of twin pregnancy, ultrasonographic signs, abnormally high AFP level in serum Down's syndrome test, Depakine® treatment, the patient consent form, TRACE - Time Resolved Amplified Cryptate Emission, ssso, todylaboratories®, bmn, code L16LD2126