how much water should i drink before ct scan?
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Please drink at least 1 litre of water during the one hour before your appointment time. You do not need to drink it all in one go. You may go to the toilet if necessary.
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It's fine to drink water before a blood test, unless you're instructed otherwise by your doctor.
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This is generally the case for blood tests and surgeries. If your phlebotomy specialist says it is OK to drink water before getting blood drawn, try to drink the recommended daily amount of water, which is 64 ounces. Before you donate, drink a glass of water that's about 16 ounces.
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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.
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MRI Scans: Patient should remain empty stomach for 6 hours before the appointment time, if you are undergoing an Abdomen or Pelvic scan or contrast study. For all other scans, no fasting is required.
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Food and medications Your doctor is likely to ask you: To fast for four hours before your HIDA scan. You might be allowed to drink clear liquids.
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Healthy patients who are about to have minor surgery can consume a glass of water 4 hours before surgery. Of course, if your doctor has advised you too fast for 12 hours it is highly recommended that you adhere to his or her instructions.
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Do not eat or drink anything, except water, for 6 hours before the exam. You may drink water, as much water as you can would be helpful, until arrival. Routine medications may be taken, unless you have been instructed otherwise.
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You will be asked to drink about two pints of water before the scan to fill up your bladder; this pushes up the uterus to give a clearer picture. You'll then have gel rubbed onto your belly and a hand-held scanner passed smoothly backwards and forwards over your skin.
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Eating and drinking before an MRI scan Usually there are no dietary restrictions before a MRI exam. However, if your physician has requested the use of a contrast agent for your MRI then it would be best not to eat two hours prior to your exam to minimize the already unlikely event of nausea.
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You should not eat or drink anything for six (6) hours before your exam. You should empty your bladder before beginning this exam so that you will be as comfortable as possible during the procedure. There are no other preparations necessary for you to do before this test.
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You should drink two to three eight-ounce glasses of water one hour before your scheduled ultrasound. You shouldn't urinate before your ultrasound so you arrive at your appointment with a full bladder.
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You need to have a full bladder for this scan. 1 hour before your appointment empty your bladder and drink rapidly (within 5-10 min) 1 litre of water. Finish drinking 50-55min before the scan to allow enough time for the bladder to fill. Do not empty your bladder again until after the scan.
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Typically, you don't need to make any special preparations before a renal scan. You can usually eat your normal diet. Sedation isn't usually necessary. You should tell your doctor about any prescription or over-the-counter medications you're taking.
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He advises travelers to drink about 250 milliliters (that's just over 1 cup) of water per hour when flying. In addition to being hydrating, water is also the preferred beverage to serve by those pushing the cart.
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When the CT scan is over, you can resume normal activities. If you had intravenous contrast, you should drink at least eight glasses of water throughout the day to help flush the contrast out of your body. Your doctor will receive the results within 48 hours.
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Your doctor will probably ask you to fast (not eat) for two to four hours before the scan. You may be asked to stop taking certain medications before your test. You may want to wear loose, comfortable clothing because you'll need to lie down on a procedure table. You may also be given a hospital gown to wear.