In general, the thicker the nuchal translucency at a given gestational age, the higher the chance of a chromosomal problem. You may get the results right away, or you may have to wait up to 10 days if the doctor has to send the data to a processing center.
How long does it take to get NT results NHS?
Getting your results If your screening test returns a lower-chance result, you should be told within 2 weeks. If it shows a higher chance, you should be told within 3 working days of the result being available. This may take a little longer if your test is sent to another hospital.
How do I check my NT scan results?
To date your pregnancy accurately, the sonographer will measure your baby from the top of their head to the bottom of their spine. Theyll then measure the width of the nuchal fluid at the back of your babys neck. The skin will appear as a white line, and the fluid under the skin will look black.
How accurate is the nuchal translucency test?
The accuracy of a screening test is based on how often the test correctly finds a birth defect. The nuchal translucency test correctly finds Down syndrome in 64 to 70 out of 100 fetuses who have it. It misses Down syndrome in 30 to 36 out of 100 fetuses.
How long does it take to get results from 12 week scan?
When will I be given the results? Normal results will be confirmed in writing within 7 working days. If the result identifies the pregnancy as higher risk for any of the conditions you will be contacted by telephone within three days by the screening midwife.
How often is Down syndrome missed before birth?
This means that one or two out of 10 pregnancies with Down syndrome are missed (classified as screen negative). With the Integrated Test, about four out of five cases of spina bifida are detected, and one out of five is missed.
What does NT scan check for?
The nuchal translucency test (also called the NT scan) uses ultrasound to assess your developing babys risk of having Down syndrome (DS) and some other chromosomal abnormalities, as well as major congenital heart problems.
Do doctors know right away if baby has Down syndrome?
Down syndrome is usually diagnosed during pregnancy. If Down syndrome is not diagnosed during pregnancy, health care providers can usually diagnose Down syndrome based on the infants appearance. In such cases, the diagnosis should be confirmed using a blood test that examines the childs chromosomes (karyotype).
Is 9 weeks too early for NT scan?
The NT scan must be done when youre between 11 and 14 weeks pregnant, because this is when the base of your babys neck is still transparent. (The last day you can have it is the day you turn 13 weeks and 6 days pregnant.)
Do I need to drink water before NT scan?
Can I eat before having a Nuchal Translucency ultrasound? You can eat before your ultrasound. You are required to have a full bladder. It is necessary to drink 600-800ml of water two hours prior to the scan and refrain from going to the toilet before the scan.