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Why Is Liquid Taken Before A Colonscopy?

Posted on Fri, 4 Apr 2014

Question: If you are getting done a colonscopy what is it to be expected before taking some liquid overnight and the day of the exam

Answered by Dr. Ashish Verma (3 hours later)

Brief Answer: you will have loose motions. Detailed Answer: Hi, Thanks for writing to HCM. This is Dr. Ashish Verma, a general surgeon, answering to your query. That liquid that you will take the night before is to clean your bowel...it will literally flush out your bowel clean so that during colonoscopy the vision is clear inside... So after taking that liquid, drink plenty of water or you may have huge water loss and dehydration ensues. The bowel movements will continue till the morning. Next day during the scopy a tube will be passed per anum...and air will be pushed inside to distend the bowel to help visualizing the bowel. So after the procedure you will pass a lot of flatus...to expell that air. You may also experience a little pain when the scope is negotiated through the curves of the bowel. Rest all be uneventful. Hope, that I have answered to all your queries. If you have further queries, I will be glad to answer them. Regards Dr. Ashish Verma

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Ashish Verma (2 days later)

Thank you so much doctor. I was under the impression that I had to hold on to that liquid till the morning. what a relief!! thanks a million

Answered by Dr. Ashish Verma (3 minutes later)

Brief Answer: . Detailed Answer: Hi, Glad that my answer helped you. If you dont have further queries, you may close this discussion and rate the response. Dr. Ashish Verma

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Above answer was peer-reviewed by : Dr. Raju A.T