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Houma, LA
A 21-year-old male asked:

Can i have an abdominal ultra sound with a lot of gas? or does the gas affect the imaging?

1 doctor answer1 doctor weighed in
Dr. Paxton Daniel
Radiology 39 years experience
Ultrasound: is definitely less effective when there is gas in the bowel because the gas effectively blocks the sound beam. That is why abdominal ultrasound studies should be performed after prolonged (8 hours) of fasting whenever possible. Also, no smoking or chewing gum during that time as these cause air to be swallowed. Fasting also allows the gallbladder to distend with bile, improving its assessment.

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Last updated Jul 6, 2016

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