Gynaecology & Obstetrics A women undergoes a chorionic villous sampling at 11 weeks gestation. The result shows two cell lines – 46 xy and 47 xy + 21 what is your next step A Repeat CVS at 13 weeks gestation B No need to evaluate further C Do amniocentesis for further confirmation D Diagnose as Down syndrome and counsel the couple 💡 Explanation A women undergoes a chorionic villous sampling at 11 weeks gestation. The result shows two cell lines - 46 xy and 47 xy + 21 what is your next step ✓ Correct Answer: C. Do amniocentesis for further confirmation