This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: ULTRASOUND, Subject name: Radiology
Early diastolic notching of uterine aery disappears by which week of gestation? 
Select and explain. 
A. 20, B. 21, C. 22, D. 24
C: 22
Answer: C: 22 
Explanation: Diastolic Notching in uterine aery Doppler usually disappears beyond 22 weeks of gestation. Persistence of uterine notch beyond 22 weeks is indicator of preeclampsia.