dear sir, can answer my quen after observing below report, on my fourth month of pregnecy doctor suggested me for ultra sound scan in this report results is down syndrome low risk trisomy 21 is1:2594 below cut off .trisomy 18 is 1:500; Age risk is 1:1443 AFP-39.3 ng/ml, uE3-0.5ng/ml, HCG-18184 mIU/ml, Inh-198.1 IU/ml MoM AFP-1.05 located in the low risk area for neural tube defects