ABOG Maternal-Fetal Medicine

GeneticsEnglish
Exam overview

Practice session

A 31-year-old G2P1 presents at 20 weeks for anatomy ultrasound. She is 5'6", weighs 230 lbs (BMI 37). cfDNA at 12 weeks reported 'no call' due to low fetal fraction. Which factor most likely explains the failed cfDNA result?

Loading your practice session…