Ultrasound Preparation

Abdomen (Gallbladder, Liver, Pancreas, Spleen, Bile Duct, Kidneys, Aorta)

• No eating, drinking, smoking, or chewing gum for 4 hours.
• Pediatrics: 4-hour fast; infants: 2-hour fast.

Obstetrical, Pelvis (Male/Female), Urinary Bladder

• Drink 5 cups (40 oz / 1.25 L) of water 2 hours before exam.
• Finish drinking 1 hour before exam.
• Do not empty bladder.
• Pediatrics: 16–24 oz depending on age.
• If bladder is not full, the appointment may be rescheduled.

Abdomen + Pelvis Combined

• Fast for 4 hours.
• Drink 5 cups (40 oz / 1.25 L) water 2 hours before.
• Finish 1 hour before.
• Do not empty bladder.

Transrectal Ultrasound

• Fleet enema 2 hours before (purchase at pharmacy).
• Drink 34 oz / 1 liter of water 1 hour before.
• Do not use the washroom.

Thyroid, Neck, Breast, Scrotum, Shoulder, Venous, Arterial, Carotid Doppler

• No preparation required.