The doctor will examine the inside of the colon. outside the colonoscopy area Colonoscopy procedure It can take up to 1.5 hours and is performed under sedation. in an outpatient hospital attachment at the end of the colon It can be used to perform a biopsy of the colon tissue. If a polyp is found, it will be removed and a biopsy will be sent. and the polyp goes to the laboratory. for further testing
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