Understanding Ultrasounds
Ultrasound testing uses sound waves instead of radiation to “see” inside your body. It is a safe, painless procedure.
During this test, high frequency sound waves are directed at a specific organ. The sound waves hit the target and bounce back as a series of echoes that are analyzed by the scanner to create a visible image.
Ultrasounds can be performed to evaluate different parts of the body, including but not limited to the:
- Abdomen
- Aorta
- Bladder
- Gallbladder
- Liver
- Pancreas
- And prostate
In the case of an obstetrical ultrasound (sonogram), sound waves are directed at an embryo or fetus in order to create pictures of a growing baby.
How you prepare for your exam will depend on the type of ultrasound you are scheduled for. To get a list of detailed instructions based on your specific ultrasound. Your doctor will also be able to explain any necessary directions that must be followed.
- Obstetrical Ultrasound (Sonogram)
Requires a full bladder - Drink 16 oz of liquid 30 minutes before the exam
- Do not urinate until after the exam
- Children may not accompany you into the exam room. If you must bring children with you, please bring another adult along to stay with them in the waiting area.
- This exam usually takes one hour
Prostate Ultrasound
- Take a cleansing enema 1-2 hours before the exam
- Empty your bladder just before the exam.
- This exam takes about 30 minutes
Renal, Urinary Bladder Ultrasound
- Drink 12 oz of water 1 hour before the exam
- Please do not empty your bladder within 30 minutes of the exam
Ultrasound Abdomen, Aorta, Liver, Pancreas or Gallbladder
- Nothing to eat or drink after midnight before the exam
At the start of an ultrasound, a water soluble gel is applied to the area of your body to be examined. An imaging transducer is then moved slowly over the area to produce the images, which are visible on a “TV screen” and are recorded digitally.
Most exams take about 30 minutes, although some procedures may be longer.
Following ultrasound testing, the images are read and evaluated by a radiologist and the results discussed with your doctor.
