In medicine, the<unk>  is a diagnostic test used before surgery to predict if surgery will find a vesicointestinal fistula or colovesical fistula (an abnormal direct pathway between the colon and urinary bladder) or other type of vesicointestinal fistula. __TOC__
Poppy seed test
Kleihauer–Betke test
Beutler test
Welner table
Kurzrock–Miller test
Egg hatch assay
Lea test
Trinder spot test