Hi, my wife ange is 24 and we taken the target

Patient: Hi,my wife ange is 24 and we taken the target scan 21 week , they are telling that1 .”fetus shows non ossified nasal bone with increased risk for trisomy 21- suggested invasive test to rule out aneuploidy”2. before ultrasound risk for trisomy 21 is 1 in 11003.Post ultrasound risk for trisomy 21 is 167please let me what should we do?

Doctor: