<prompt> For renal stone, diagnosis is not done by a IVPb MRIc PET-Scand USGe CT scanacbcad  <response>: Radiological investigations used for urinary stones are : -i Plane abdominal x-ray KUB film First radiological test.ii Intravenous pyelogram IVP.iii Non-contrast helical CT Investigation of choice.iv USG 