The following objects should be removed endoscopically (1): Batteries that cause symptoms or signs of GI tract injury Cylindrical batteries and disk batteries that remain in the stomach for > 48 hours without causing signs of GI injury Sharp-pointed objects in the stomach Objects > 2.5 cm diameter in the stomach Any objects that remain in the stomach after 3 to 4 weeks Any magnets within endoscopic reach Intestinal foreign bodies Most foreign objects that have passed into the small intestine usually traverse the GI tract without problem, even if they take weeks to do so.