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 How much are private abdominal scans? 25/01/2022 Does gallbladder sludge show up on ultrasound? 25/01/2022 Is Fasting required for an abdominal ultrasound? 25/01/2022