Can I drink Water before an Abdominal Ultrasound? If you are having an abdominal scan, you are allowed to have clear fluids such as water and black coffee. You Might Also Like Is Fasting required for an abdominal ultrasound? 25/01/2022 Is it easy to book an abdominal ultrasound appointment? 25/01/2022 Will abdominal ultrasound hurt? 25/01/2022