MSFinals-3426

A 28-year-old woman presents to the antenatal clinic at 12 weeks gestation for Down’s syndrome screening. She undergoes a screening test and the results show an increased b-hCG, decreased PAPP-A, and thickened nuchal translucency on ultrasound. The chance of Down’s syndrome is calculated to be 1/80. The patient expresses her concern about the safety of the testing options for her and her baby. She has no significant medical history. What is the most appropriate next step in managing this patient?