CellFree DNA Prenatal Screen
- Lab Name
- CellFree DNA Prenatal Screen
- Lab Code
- Epic Name
- Cell Free DNA Prenatal Screen
Submissions should be accompanied by a completed UW Genetics Clinical Lab Request for the Cell Free DNA Prenatal Screen.
Note: For twin pregnancies, see informational test catalog “Send Out Cell Free DNA Aneuploidy Screen.”  UW-MT Genetics Clinical Lab Request Form
- Down syndrome, NIPS, NIPT, Placental DNA, Trisomy 13, Trisomy 18, Trisomy 21, Turner syndrome, cell-free fetal DNA, cfDNA, fetal chromosome aneuploidy screen, noninvasive prenatal screening, noninvasive prenatal testing
Massively parallel sequencing of total cell-free DNA (cfDNA)
- Reference Range
- See individual components
Ordering & Collection
- Specimen Type
- Whole blood
Two 10 mL whole blood in Streck Cell-Free DNA BCT® tubes (mottled black and tan).
Gently mix blood by inverting tube 8-10 times.
- Handling Instructions
requested: 20 mL whole blood
minimum: 7 mL whole blood
Note: For twin pregnancies, refer to informational test catalog “Send Out Cell Free DNA Aneuploidy Screen.” 
Store whole blood at room temperature. Do not Freeze. A completed Genetics Cell Free DNA Prenatal Screen request slip must accompany submissions.
At the cfDNA Panel (PDNAP) prompt, enter PSFULL for "Full prenatal test with chromosomes 21, 18, 13 PLUS sex chromosome aneuploidies."
Enter PSAU for "Limited prenatal test for chromosomes 21, 18, 13 ONLY."
Stability: Ambient: 5 days
- LIS Dept Code
- Genetics (GEN)
- Performing Location(s)
Attention: Genetics Lab
Clinical lab, Room NW220
University of Washington Medical Center
1959 NE Pacific Street
Seattle, WA 98195
Tel: 206-598–6429 M–F (7:30 AM–4:00 PM)
Lab email: firstname.lastname@example.org
Tel (EXOME only): 206-543-0459
Rebecca Gaulin, email@example.com
Angela Jacobson, MS, LGC firstname.lastname@example.org
Sarah Paolucci, MA, MS, LGC, email@example.com
Jenna Huey, MS, LGC, firstname.lastname@example.org
Sandra Coe, MS,LGC, email@example.com
Dru Leistritz, MS, LGC, firstname.lastname@example.org (EXOME testing only)
Variant Review Scientist
Ankita Jhuraney, PhD
Colin C. Pritchard, MD, PhD
Brian H. Shirts, MD, PhD
Christina Lockwood, PhD, DABCC
Stephen Salipante, MD, PhD
Eric Konnick, MD, MS
Niklas Krumm, MD,PhD
Vera Paulson, MD, PhD
Jillian Buchan, PhD, FACMG
- Turnaround time 8-10 business days
- Available STAT?
Billing & Coding
- CPT codes
- Billing Comments