HomeSpeical Which investigation is recommended if I.V.U failed.. Cystogram publisher :NIL NAM -June 27, 2017 Which investigation is recommended if I.V.U failed: a\ M.C.U.G. b\ Cystogram. c\ C.U.G. d\ Retrograde. Labels Speical Facebook Twitter Share:Which investigation is recommended if I.V.U failed.. Cystogram Facebook Twitter WhatsApp Pinterest LinkedIn Reddit Tumblr Telegram Email