Patient's question:
Can a 19-week ultrasound still be done for Down syndrome screening?Doctor's answer:
Hello: The best time for screening is between the 9th and 14th weeks of pregnancy, known as early pregnancy screening. If this time frame is missed, you will need to proceed with mid-pregnancy screening, which can also be used for risk calculation. However, if the final diagnosis is positive, it can cause greater harm to the mother. If you have any further questions, you can continue to ask, or you can click on the "Click to Consult" above to communicate with us in real time. Wishing you health!