HI, My wife is 13 weeks pregnant and we were advised to take a Dual marker test as the Scan showed a possibility of Down Syndrome. The Nuchal Translucency-is 1.66 mm and the CRL is 60.9 mm. The fb-hCG is 65.1 ng/ml with MOM as 1.82 and PAPP-A is 3.54 mlU/ml with MoM as 0.80. The Biochem Risk +NT is 1: 1929 below cutoff, Double Test is 1:533 below cut off, Age risk is 1: 580 and Trisomy 13/18+NT is <1:10000 below cut off. The doc says it is normal and not to worry. However i have searched the net to ascertain the standard values for these tests and got no help. The tests do not have an interpretation sheet and does not give out a clear picture. I am really tensed and just want to be double sure about what the doctor told me. Please help !!! RFW
Do not panic...there is nothing to worry...there is a triple marker test to be taken anywhere between 15-20 weeks which can give better picture....i was screened for down syndrome for my 1st baby 1:169...wrongly...we did repeat triple marker test and 3d anamoly scan...and everything was perfect...so plz. do not worry...and the last choice would be aminocentesis which gives 99% accurate results....so there is way to go...just relax....