PRENATAL CELL-FREE DNA (cfDNA) SCREENING

Specimen must be collected at 10 weeks gestation or greater. Testing will be canceled for specimens collected at less than 10 weeks of gestation. Number of fetuses must be provided (this info is available on the ultrasound report). Testing will be canceled if number of fetuses is not provided. Copy of ultrasound report must be provided. Patient's date of birth, gestational age on the date of collection, pregnancy type (singleton or multiple), and the clinical indications (including advanced maternal age, abnormal ultrasound, history suggestive of increased risk for aneuploidy, positive serum screen, or other indications) must be captured on the test request form. Draw 10 mL whole blood in special Streck/ blood cfDNA tube. Ambient temperature. Test components: 1. Nuclear cfDNA 2. Mitochondrial cfDNA 3. Tumor-derived cfDNA (ctDNA) 4. Fetal cfDNA 5. Microbial cfDNA