Before an ultrasound, whether eating is allowed depends on the type of ultrasound being performed. For abdominal ultrasounds, it is generally recommended to fast for about 6 to 12 hours before the exam. This means not eating or drinking anything except a small amount of water or non-fat liquids. This fasting helps improve the clarity of the images by preventing interference from food in the stomach or gas in the abdomen.
For ultrasounds during pregnancy or other types like thyroid, musculoskeletal, or pelvic ultrasounds, eating is often allowed, but patients may be advised to avoid fatty foods or stimulants and drink plenty of water to fill the bladder for better imaging.
In summary:
- For abdominal ultrasound: Avoid eating for 6-12 hours before.
- For other ultrasounds (e.g., pregnancy): Eating is typically allowed but avoid fatty foods and follow specific instructions.
- You may drink water and take medications with small amounts of water unless otherwise directed.
Always follow specific instructions given by the healthcare provider for the particular ultrasound being done.
