This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diagnosis in obstetrics, Subject name: Gynaecology & Obstetrics
Fetal anemia is detected on Doppler of : 
Select and explain. 
A. Uterine aery, B. Umbilical aery, C. Middle cerebral aery, D. Any of the above
C: Middle cerebral aery
Answer: C: Middle cerebral aery 
Explanation: In fetal anaemia due to Rh ISO immunization,the peak systolic velocity in the middle cerebral aery is increased. refer pgno:513 sheila textbook of obstetrics 2 nd edition