Q: I am 10 weeks pregnant and I am 31 yrs old mother of a 5 yrs old daughter. My midwife has told me about Down's syndrome test. I want to know about this test and how useful is it to go for it. Do you advise that I be tested? Please reply as soon as possible as its due between 11th to 13th week. Thanks

A:Between 11-13 weeks you need an ultrasound to judge nuchal thickness and nasal bone and a blood test for PAPP-A & free beta HCG. This will help you to exclude the presence of Down's syndrome in the foetus with an accuracy of 85%. It is advisable you go for these tests.