This question was answered on Tue 16, Mar 2010 06:26pm by Dr.Kokil Mathur

why can,t you drink beer the day before a colonoscopy

    
Asked by janet8 (Female; 59 ) on Tue 16, Mar 2010 12:42pm

why can,t you drink beer the day before a colonoscopy

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Answer by Dr.Kokil Mathur  on Tue 16, Mar 2010 06:26pm:

Hi! Thanks for your question on the forum. What you eat and drink before a colonoscopy test determines how clear your bowel will be for a successful test. Any colored beverage is avoided before the test as it may color the mucosa of the colon. Beer is one among them. Also beer causes dilatation of blood vessels of GI tract and hence may give a false picture of inflammation of colon. The preparation of bowel involves laxatives to clear the bowel. Hence a person passes frequent stools and the gut is almost empty. Beer can aggravate acidity and loss of fluids and hence cause more harm than good. Colonoscopy itself causes some drowsiness and loss of fluids. Beer and other alcohols add to this effect and can be dangerous. Also if due to some reason a general anesthesia may be required, then alcohol of any kind interferes with the effect of anesthetic drugs. Beer and alcohol also interfere with muscle relaxants and mild sedatives given during the procedure. Hence for similar reasons alcohol is to be avoided for next 24 hours too after the procedure. Hope this helps. Please let me know if there is any thing else and do keep me posted. Take care!

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Comment by Dr J Singh on Tue 16, Mar 2010 11:50pm:
Hello, Welcome to the forum. Dr Kokil has explained the causes of not consuming beer before colonoscopy very well. In any type of scopy of the abdomen in which a small camera containing flexible tube is passed through the anus, we need to have a clear vision of the gut. As Dr Mathur has said, beer colors the mucosa and causes inflammation which causes problems in the field of vision and false negative reports. This may require a repeat colonoscopy. The requirement of colonoscopy is nil per oral( no solids) the night before colonoscopy with clear fluids like water which do not affect the field of vision, the electrolyte balance and causes gastritis; to be taken if required. I hope it helps. Take care and please do keep us posted in case you have any additional doubts.

Comment by on Thu 03, Feb 2011 10:58am:
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Comment by blah on Tue 21, Feb 2012 01:13am:
What about two days before (on the fasting day, before laxatives are taken)?

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