Gynaecology & Obstetrics Diagnosis in obstetrics 10eddc73 Transabdominal CVS can be done in: A 7-9 weeks B 11-13 weeks C 8-9 weeks D done before 10 weeks High-Yield Explanation chorionic villous sampling trancervical:done in 10-12 weeks transabdominal:10 weeks to term D.C.DUTTA&;S TEXTBOOK OF OBSTETRICS,Pg no:107,7th edition