Gynaecology & Obstetrics Which of the following is a non-invasive test used to diagnose fetal Rh genotype in Rh D alloimmunization? A Cell free fetal DNA B Chorionic villus sampling C Amniocentesis D Middle cerebral aery peak systolic velocity 💡 Explanation Which of the following is a non-invasive test used to diagnose fetal Rh genotype in Rh D alloimmunization? ✓ Correct Answer: A. Cell free fetal DNA