<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am 33yrs old my scanning report at gestational age of35.2 is: BPD coressponds to 32weeks of GA. HC corresponds to 32weeks of GA. AC corresponds to 33weeks ofGA. FL corresponds to 35.2weeks of GA. Please tell me is it normal ? Is there any abnormality in fetus growth or any dwn syndrom like anormality  <response>: Hello, calculation of gestational age of the fetus from third trimester scan is not most reliable. First trimester scan is the most reliable. Among the parameters for calculating gestational age, Femoral Length is the most reliable. So dont worry much as Femoral Length is corresponding to 35.2 weeks. But I need to know effective fetal weight and liquor...you should go for color Doppler it will give more clear picture. Downs syn Chat Doctor. It has lot many parameters out of which NT scan done at 12 weeks and doubletriple Qua 