how many hours do you need to not eat before surgery?
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The amount of time you have to go without food or drink (fast) before you have your operation will depend on the type of operation you're having. However, it is usually at least 6 hours for food, and 2 hours for fluids. You'll be told how long you must not eat or drink for before your operation.
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It is important to avoid all food and drink at least eight hours prior to having anesthesia, as the alternative may be pneumonia or other serious complications after surgery if instructions are not followed.
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Preparation for the Procedure 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.
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Don't eat or drink You shouldn't eat or drink anything after midnight the night before the procedure. This includes gum or mints. However, you can usually have clear liquids after midnight up to six hours before the endoscopy if your procedure is in the afternoon.
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Avoid tough or crunchy foods, such as pizza, rice, popcorn, and hamburger. Avoid spicy and acidic foods. Most patients may resume their normal diet 7 days after surgery. Medicines to control pain and prevent infection will be prescribed for you.
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Preparing Your Dog For Surgery Follow the directions your clinic gives, but generally speaking, your dog should not eat for at least eight hours before the surgery because the anesthesia may cause nausea. Drinking water beforehand is usually fine, but check with your vet.
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Typically it's recommended to wait at least one hour before eating. You could even go so far as to following the same post-op instructions for procedures such as an in-office one hour whitening and eat only clear/white foods/liquids for 24 hours to prevent any other possible staining.
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Normally, you should avoid solid food for just 24 hours after your oral surgery, after which it may be okay to eat it again.
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What is the correct way for fasting before cataract surgery? NO solid food is to be eaten for at least 6 hours prior to your admission time. NO fluids (except water, black tea or black coffee) are to be taken for at least 2 hours before your admission time.
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Don't eat or drink anything for at least 6 hours before an upper endoscopy, or as directed by your doctor or nurse.
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Prepare for the day of oral surgery Ask your dentist or oral surgeon if you need to avoid eating or drinking before the surgery. General anesthesia can make you vomit, so your dentist may recommend that you fast starting at midnight the night before the procedure.
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The night before surgery your pet must be fasted at least 12 hours prior to admission for surgery or as indicated by your veterinarian.
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Do not eat anything after midnight the night before your procedure. This includes hard candy and gum. Between midnight and up until 2 hours before your scheduled arrival time, you may drink a total of 12 ounces of water (see figure). Starting 2 hours before your scheduled arrival time, do not eat or drink anything.
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Follow the directions your clinic gives, but generally speaking, your dog should not eat for at least eight hours before the surgery because the anesthesia may cause nausea. Drinking water beforehand is usually fine, but check with your vet.
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Fast. If you're going to have anesthesia, your dentist will recommend that you do not eat or drink anything for at least eight hours prior to your surgery. If you need to take medication, only use a small sip of water if necessary. Doing so will help you to avoid any risk of aspiration during surgery.
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You may not have anything to eat or drink (including water) for six hours prior to the appointment. No smoking for at least 12 hours before surgery. Ideally, cut down or stop smoking as soon as possible prior to the day of surgery.
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You can expect to be in hospital for between 3 and 6 hours. We ask patients to arrive at specific times to allow plenty of time for all the pre-operative checks and examination to be made before your surgeon starts the operating list. Due to space restrictions, we request only one person accompanies you.