Abdominal ultrasound should be fasting?

If the liver, kidney, gallbladder, spleen, adrenal gland and other parts of the examination, you need to fast. After eating will affect the examination field, resulting in inaccurate examination results. In addition, if the woman's uterus, nearby or pelvic examination, you do not need to fast, but before the examination you need to drink a lot of water to keep the bladder full, which is conducive to clearer observation. Therefore, abdominal color Doppler ultrasound examination whether fasting, should be combined with the examination of specific items to decide, there are individual differences.