Information on collection, storage, and volume
Whole blood, amniotic fluid, chorionic villus sample (CVS), cultured amniocytes, cultured villi. Submission of maternal blood is required for analysis of Maternal Cell Contamination (511402), which should be ordered on a separate test request form.
8.5 mL whole blood; amniotic fluid: 20 cc, CVS: 20 mg, or amniotic fluid and CVS culture: two confluent flasks amniotic fluid: 20 cc, CVS: 20 mg, or amniotic fluid and CVS culture: two confluent flasks
Yellow-top (ACD-A) tube or lavender-top (EDTA) tube; for prenatal specimens: sterile plastic conical tube or two confluent T-25 flasks
Maintain specimen at room temperature or refrigerate at 4°C.
Frozen specimen; quantity not sufficient for analysis; improper container