Is it possible for you to drink coffee before an abdominal ultrasound?

Not recommended: You should avoid taking any fluid (even water) for the interval recommended before the abdominal ultrasound. Smoking and chewing gum are also to be avoided. The reason is that these activities increase gas in the bowel and that makes it harder for ultrasound to see abdominal organs. Also, we want the gallbladder to be distended with bile and even drinking water can cause it to contract.