Ultrasound Test
An ultrasound is an imaging test that uses sound waves to create pictures of the inside of your body. It helps your health care provider see organs, tissues, and other structures without surgery.
What this test measures
Ultrasound uses sound waves to make images of organs, tissues, and other structures inside your body. It can show movement, such as a beating heart or blood flow, and can create 3-D images.
What your results mean
Reference ranges vary by laboratory and by your age and sex. MedlinePlus does not publish a single normal range for this test — always read your result against the range printed on your own lab report and discuss it with your provider.
Frequently asked questions
What is an ultrasound used for?
Ultrasound is used to monitor pregnancy, diagnose medical conditions, and guide biopsy procedures.
Is ultrasound safe?
According to the source, ultrasound uses sound waves and allows your provider to see inside your body without surgery.
What does a normal pregnancy ultrasound mean?
According to MedlinePlus, normal results mean your baby appears to be developing normally, but an ultrasound cannot guarantee a healthy baby.
What is Doppler ultrasound?
Doppler ultrasound is a type that can show movement in your body, such as your heart beating and blood flow.
What if my ultrasound results are not normal?
According to MedlinePlus, if results are not normal, you may need more tests, including another ultrasound.
Related lab tests
Sources
- MedlinePlus: Ultrasound — NIH MedlinePlus
Last updated . Information is aggregated from official public sources and is not a substitute for professional medical care.