Submit specimen with all completed clinical information on the Prenatal Screening Requisition (Click here to view/print form). The following information is required: patient's date of birth, patient's ethnicity, patient's weight, estimated date of delivery, dating method (LMP or US), number of fetuses present, medication dependent diabetic, smoking status, previous pregnancy history with ONTD, and for IVF pregnancies, the birthdate or age of the egg donor.