How much water does it take to have a full bladder?
A healthy adult bladder can hold nearly 2 cups of urine comfortably.
A healthy adult bladder can hold up to 16 ounces (2 cups) of urine comfortably, according to the National Institutes of Health..
How can I fill my bladder quickly for an ultrasound?
In order for you bladder to be full for the optimal ultrasound examination, you must drink 32 oz of water 1 hour prior to your exam. DO NOT go to the restroom and empty bladder once you start drinking the water. We would also like you to eat a meal.
How long does it take to fill your bladder for an ultrasound?
Unfortunately, we need you to have a full bladder for this exam. Report to Radiology approximately 20 minutes before your scheduled time if you have not been contacted by the Admitting Office. This exam will take approximately 15 minutes if your bladder is full.
Do you really need to drink 32 oz of water before an ultrasound?
Before Your Exam Drink 32 ounces (four glasses) of water one hour before your examination time. You can go to the bathroom to relieve yourself, as long as you keep drinking water. If you are also having an ultrasound abdomen, please do not eat or drink for 8 hours before your exam.