Ultrasound, or sonography, produces images of the inside of the body by generating high-frequency sound waves. As the sound waves bounce off internal organs and tissues, they create echoes. A computer then translates these echoes into images on a screen, images that can show abnormalities (disease) within the body. The process is fast, painless and completely free of radiation or harmful side effects.

Ultrasound tests at The ODC sometimes use a modified technique—called Doppler—to capture moving images of the heart and large blood vessels.


For Pregnancy or Pelvic Examinations:

  • You may eat normally.
  • Your bladder must be full for this examination. Drink at least 32 ounces of liquid one hour prior to your examination. We recommend you avoid caffeinated beverages.
  • Please do not urinate until after your examination is completed. If you are very uncomfortable, please notify our staff when you arrive.
  • Allow 45-50 minutes for the examination.

Abdominal Examinations:

  • Nothing by mouth after midnight.
  • Allow 45-60 minutes for the examination.

Kidney Examination

  • Drink 20 ounces of water one full hour before your examination.

Examination of any other part of the body:

  • No special preparation is required.

If you are pregnant, please tell our patient representative.

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