A KUB (kidneys, ureter, and bladder) is a standard x-ray that will show many stones.
A KUB is a standard frontal x-ray of the abdominal area that includes the kidneys and bladder. Typically it will be used to look for and locate gallstones and kidney stones. Depending on what the doctors is looking for you may be given a contrast solution via IV. The contrast helps to highlight problem areas and enhance the readability of the x-ray.