Maternal Cell Contamination
Molecular testing of prenatal samples such as amniotic fluid or chorionic villi may in rare instances produce inaccurate results due to contamination from maternal material. Testing for maternal cell contamination is highly recommended for all prenatal samples when molecular testing is ordered on the specimen. A blood sample from the mother should be submitted along with each prenatal sample in order to perform these studies.
Prior to ordering prenatal testing, please contact our laboratory at 212-241-7518 to discuss.
Two 5-10 mL tubes of anticoagulated blood in EDTA (lavender top) or two 5-10 mL tubes of anticoagulated blood in ACD (yellow top).
Shipping: Send at room temperature.
Turnaround Time: 7-10 days
CPT Codes: 83891, 83898x5, 83909, 83912
Consent Form: Postnatal Consent form [PDF]
Requisition Form: General Test Requisition [PDF]