Before the ultrasound test
The preparation for this test will depend on the type of ultrasound procedure your doctor has ordered. Some preparations include drinking a quart of water before the test to obtain better images. Other preparations may include eating a fat-free dinner the night before the test, or possibly fasting. The doctor, nurse, or receptionist will give you complete instructions before the exam.
On the day of the test
You will be asked to not eat or drink anything 8 hours before the exam. However, you may still take your medicine with sips of water.
Your ultrasound test will be performed by a registered, specially trained, technologist and interpreted by a board-certified radiologist.
During the test
You will lie on a padded examining table. A warm, water-soluble gel is applied to the skin over the area to be examined. The gel does not harm your skin or stain your clothes. A probe is gently applied against the skin. You may be asked to hold your breath several times or roll on your side.
The ultrasound will take about 30 to 40 minutes to complete.