Pregnant women do four-dimensional ultrasound to fasting?

Pregnant women do four-dimensional color Doppler ultrasound do not need fasting, if you intend to do four-dimensional color Doppler ultrasound, that day by the way to do the screening of gestational diabetes, it needs fasting, and the first three days to ban sweets, the first day after ten o'clock in the evening can not eat things, the next day at 7:30 to 8 o'clock in the morning to take the first blood to check gestational diabetes, if not do the screening of gestational diabetes, do four-dimensional color Doppler ultrasound alone is not need fasting. It is recommended to do regular prenatal check-ups at all stages during pregnancy. The diet during pregnancy should be diversified as much as possible. Eat more fresh vegetables and fruits, eat more high-quality protein food and eat more coarse fiber food.