Frequently asked question
optimo screening test
Q : What does the optimo test involve?
A : optimo is a screening test done during the first trimester of pregnancy, between 11 weeks + 4 days and 13 weeks + 6 days. It involves:
– A fetal ultrasound
– A maternal blood test
The ultrasound is done to make sure the fetus is growing and thriving and has no malformations. It also measures nuchal translucency.
The blood test screens for serum markers, which are substances present in the mother’s blood that are produced by the developing placenta.
These tests involve no risks for the mother or the fetus.
Q : Which conditions does the test screen for?
A : The optimo test is done mainly to screen for trisomies 21, 18 and 13, but it can also detect other conditions:
– By ultrasound: heart defects, neural tube defects, other malformations
– By serum markers: obstetric risk factors
Q : How is my risk calculated?
A : The risk of trisomies 21 and 18 is calculated based on:
– the nuchal translucency
– the serum marker results
– the mother’s age
Your result is categorized as low risk (less than 1/2,500), moderate risk (between 1/2,500 and 1/100), and high risk (greater than 1/100). The risk of trisomy 13 is calculated based on whether or not malformations can be seen on the ultrasound and is not assigned a number.
Q : How long does it take to get my result?
A : You will receive your result within three business days. If your risk is low, you will be informed by email. A copy of the result will also be sent to your doctor.
Q : What happens if my risk is moderate or high?
A : If your risk is greater than 1/2,500, you will be contacted by phone.
If your risk is moderate, you will be offered the Harmony test, a fetal DNA test done on maternal blood. This test is free of charge and the result is available in five business days.
If your risk is high, you can also have the Harmony test done free of charge. However, it is recommended that you talk to your doctor about having an amniocentesis.
Q : What is the detection rate with the optimo test?
A : The detection rate for trisomy 21 is 98%.