View abnormal flow of blood through vessels and/or the heart
View and evaluate blockages to blood flow, such as clots
Assess build-up of plaque inside a vessel
Monitor blood flow through repaired blood vessels, like
Examine a baby during a high-risk pregnancy
In most cases, there are no complications with this test.
What to Expect
Prior to Test
Your doctor may do the following:
A physical exam
Blood or urine tests
In some cases your doctor may instruct you to:
Fast for 8-12 hours before the test. This will decrease the amount of gas in your intestines and make organs easier to see.
Have a full bladder before the test. You may need to drink six or more glasses of water without going to the bathroom.
because it can interfere with test results.
Description of the Test
You will lie on a table. Your doctor will put a gel on the skin over the area that is to be examined. The gel helps the sound waves travel between the machine and your body.
The ultrasound machine has a hand-held instrument called a transducer, which looks like a microphone or wand. The transducer is pushed against your skin where the gel was applied. The transducer sends sound waves into your body. The waves bounce off your internal organs and echo back to the transducer. The echoes are converted to images that are shown on a screen. The doctor examines the images on the screen. He may make a photograph of them as well.
You may be asked to change positions or hold your breath during the exam.
Please be aware that this information is provided to supplement the care
provided by your physician. It is neither intended nor implied to be a
substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER
IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the
advice of your physician or other qualified health provider prior to
starting any new treatment or with any questions you may have regarding a