Does color Doppler ultrasound of uterine appendage require fasting?

Ultrasound of the uterine appendage usually does not require fasting, but you may need to hold in your urine during abdominal examination.

Color ultrasound of the uterine appendage is divided into two examination methods: transvaginal and transabdominal. Transvaginal color ultrasound does not require fasting or holding in urine. You only need to empty your bladder before the examination. For transabdominal color ultrasound, the bladder needs to be filled appropriately, and the uterine appendages can be visualized more clearly by drinking water to hold in urine, but there is no need to fast. Drinking 500-800 ml of water 1 hour before the examination can achieve the ideal effect of holding back urine. Overfilling the bladder may compress the organs and affect the imaging quality. For emergencies or special circumstances, the doctor may use a urinary catheter to quickly fill the bladder to complete the examination.

In rare cases, if combined examination of upper abdominal organs such as liver, gallbladder, pancreas and spleen is required, the doctor will inform you in advance that you need to fast for more than 8 hours. When combined with gestational diabetes screening and other items that require fasting, priority should be given to completing the fasting examination before arranging color ultrasound. Some medical institutions may impose fasting requirements for transabdominal examinations, but this is not a universal norm.

It is recommended to consult the specific hospital requirements before the examination and wear loose clothing to facilitate exposure of the examination area. Menstruating women can choose to undergo abdominal examination or avoid menstruation, and urinate promptly after examination to avoid urinary retention. If you need to hold in your urine, you can bring drinking water and follow the guidance of medical staff to control the amount and time interval of drinking water.