On Doppler studies which is an ominous sign for IUGR fetus :: (A) Increase S/D ratio, (B) Reverse diastolic flow, (C) Diastolic notch, (D) All of the above
Answer is B. Absence of end-diastolic frequencies or reverse diastolic flow patterns in the umbilical aery usually indicates poor perinatal outcome. Reference: Dutta's Textbook of Obstetrics 7th edition page no 227