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You do not need to be fasting before an ultrasound, however u must drink plenty of fluids, this leaves the kidneys at their largest and easier to see in the ultrasound. Plus by not fasting the kidneys are working like normal while the US is going on.
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoYes, you need to fast 6 hours before the exam. Also in order to have a full bladder for the procedure, you should drink at least 16-32 ounces of water 30 mins to an hour before the exam. That is at least one- two water bottles. Then refrain from urinating until after the exam.
Wiki User
∙ 14y agoYES. Otherwise gas forms due to lack of food in the system and makes it more difficult for the technician to see clearly.
Wiki User
∙ 11y agoNo you do noy, you can eat as much as you want or not even eat the result will always be the same!
Wiki User
∙ 12y agoThere is no need to fast
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Do i have to fastfor a random gluose test
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you dont.
Do you have to fast before your magnesium blood test?
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Do you need to fast before an iron blood test?
no because a blood test is about what your blood is normally like and if you fast you wont be your normal self
Will I need to fast (not eat) before my blood type test?
You should check with your Doctors office to see if you should fast before this test. Each test is different and it is better to be safe than sorry.
