Bowel contents: Eating before a liver ultrasound can increase food/gas content in your intestines which could interfere with the images.
Answered 12/18/2017
3.8k views
Gallbladder : When they do an ultrasound of your liver they also look at the gallbladder. Fasting helps ensure that the gallbladder is full and easier to evaluate on US.
Answered 2/24/2018
3.8k views
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