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Doctor insights on: Colonoscopy Prep Didn T Work

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Colonoscopy prep did not work. Drank 64 ounces and took four laxatives. Did not use the bathroom once. What should I do? I need this test done

Colonoscopy prep did not work. Drank 64 ounces and took four laxatives. Did not use the bathroom once. What should I do? I need this test done

Reschedule Colonosco: Without a good bowel preparation, colonoscopy will not give enough information. Speak to the doctor doing the colonoscopy and see if this should be deferred

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Dr. Charles Cattano
2,033 Doctors shared insights

Colonoscopy (Definition)

Colonoscopy is the procedure of using a long flexible camera to visualize the entire colon from the inside with the option to take pictures, video, perform biopsies, remove polyps, etc. Generally people are sedated and do ...Read more


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I can't take any more of my colonoscopy prep medicine! What do you recommend?

Try Miralax (polyethylene glycol): Try MiraLAX (polyethylene glycol) with the clear flavored gatorade. It may make it easier for you. Usually, each dose of MiraLAX (polyethylene glycol) equals 25% of a bowel prep. So however much you didn't complete with your bowel prep - substitute one dose of MiraLAX (polyethylene glycol) for each 1/4 of the prep.

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Can colonoscopy prep make you sick?

Can colonoscopy prep make you sick?

Possibly: The prep called GoLytly is polyethelyne glycol which when ingested causes an outpouring of body fluid into the GI tract which can lead to dehydration. It is more important to have a bland diet without roughage several days before and use a Fleet enema (sodium bisphosphate) to clean the distal colon. A clean colon is the important issue and not the total use of oral meds to clean out the bowel.

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Colonoscopy prep clear return? Brown return?

Colonoscopy prep clear return? Brown return?

Yes: Initially, you will have brown stool-colored results after colonoscopy prep. Eventually the goal is clear return or clear-ish with occasional flecks of brown liquid stool.

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Is it possible for you to eat yogurt during a colonoscopy prep?

It is: Possible but not recommended. A clear liquid is anything you can see through and most yogurts I have seen are not clear!

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Are jolly ranchers safe for colonoscopy prep?

Yes: They dissolve completely and are no problem. Suggest you avoid the red and purple.

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Will the colonoscopy prep trigger colitis?

Will the colonoscopy prep trigger colitis?

Some of the: Older preps could have irritated an already inflamed colon, but if your colitis is in remission, currently used preps should not cause a flair.

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Is orange jello ok for colonoscopy prep day?

Probably ok: But best tocall your endoscopists office and ask their preferences and for clarification.

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Ok to drink myoplex lite with colonoscopy prep?

Never heard of it: The doctor who orders colonoscopy would be able to guide you best. Call him or her or their nurse to help you and guide you further.

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Is it ok to eat orange jello during my colonoscopy prep?

Yes and no.: Avoid red and purple, but orange doesn't usually cause much problem. Be sure to consume a lot of liquids, too. Check with your doctor's office, they might have unique restrictions/limitations. The red jello can get confused with fresh blood!

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Is it possible for you to eat hard candy during colonoscopy prep?

Yes: As long as the candy is being consumed during the prep time, that should be fine.

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Is there any difference between the colonoscopy prep pills or liquid?

Is there any difference between the colonoscopy prep pills or liquid?

Not much: Different doctors will ask you to do different preparation. A lot of time it is Dr. Preference based on their experience.

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How long does it take to replenish electrolytes that have been lost during a colonoscopy prep?

No time at all: Your colonoscopy prep should have been done with Go-lytely a mixture of laxity r and electrolytes which stops any electrolyte depletion. If not, you can replenish your self in a few hours if otherwise healthy by drinking something electrolyte rich like coconut water.

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I read the dosage wrong on the colonoscopy prep. I drank 4 doses in less than 10 mins. Will I be alright?

Yes: The prep is an electrolyte or osmotic solution designed to keep fluid within the bowel wall and cause diarrhea. Taking a dose in a short time will not harm you. Be sure to follow directions about drinking liquids, as you may become dehydrated.

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What kind of protein drinks are fine for colonoscopy prep?

All: As long as there is no bulky fiber (fruit/vegetable products), protein should be 100% digested in the small intestine. As you get closer to colonoscopy time, go to clear liquids. Up to 6 hours before, we allow shakes.

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What are the differences between sigmoidoscopy prep and colonoscopy prep?

It is similar: Both procedures require complete cleaning up of the Colorectal area. So the prep is not any different.

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How to keep from vomiting during colonoscopy prep?

Basics: Some basic remedies include keeping it cold, using a straw, or mixing / chasing it with something you like. Otherwise you may need a different bowel prep or a dose of an anti-emetic like Phenergan (promethazine) or Reglan before you start.

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I'm doing a colonoscopy prep. I have fibromyalgia and it's flared up as well as having a migraine. I have medication for both but I don't know if I can?

I'm doing a colonoscopy prep. I have fibromyalgia and it's flared up as well as having a migraine. I have medication for both but I don't know if I can?

Can what?: Do you mean you don't know if you can take the colonoscopy prep? If you're feeling too ill from fibromyalgia or migraine, call GI doctor to discuss and re-schedule colonoscopy when you feel better. But be sure to have it done soon. It may save your life.

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