 If the person who swallowed the foreign body is doing well, usually an x-ray image will be taken which will show any metal objects, and this will be repeated a few days later to confirm that the object has passed all the way through the digestive system.Also it needs to be confirmed that the object is not stuck in the airways, in the bronchial tree.Most objects that are swallowed will, if they have passed the pharynx, pass all the way through the gastrointestinal tract unaided.