  A is a 55-year-old who I know well because I have been taking care of her husband.  She comes for discussion of a screening colonoscopy.  Her last colonoscopy was in 2002, and at that time she was told it was essentially normal.  Nonetheless, she has a strong family history of colon cancer, and it has been almost four to five years so she wants to have a repeat colonoscopy.  I told her that the interval was appropriate and that it made sense to do so.  She denies any significant weight change that she cannot explain.  She has had no hematochezia.  She denies any melena.  She says she has had no real change in her bowel habit but occasionally does have thin stools.