Screening Tests


Prenatal screening tests calculate the risks of certain birth defects or other complications occurring in a pregnancy, but they cannot diagnose or rule out a problem with certainty. Screening tests pose no risk to the pregnancy and are available to all pregnant women. Women who receive abnormal screening results are offered the option of diagnostic testing.

Types of screening tests we offer:

Tests First Trimester Screen (Ultra-Screen) Instant Risk Assessment First Trimester Screen (Ultra-Screen) Quad Screen
Time Frame 11 weeks, 1 day to 13 weeks, 6 days Bllod drawn as early as 9 weeks, 1 day. Ultrasound same as previous 15 to 20 weeks
Method Ultrasound and blood test Blood sent to
lab prior to ultrasound appointment
Blood test
What It Detects and Detection Rates Down syndrome and Trisomy 18 & 13 (80-95%) Down syndrome and Trisomy 18 & 13 (80-95%) Neural tube defect
(80-90%), 
Down
syndrome
(80%), Trisomy 18 (60%)
Risk None None None
Results Available 2 to 3 days Immediately following the ultrasound 3 to 5 days