<prompt> The method to diagnosis misplaced intra uterine device isUltrasoundX-Ray abdomen Erect viewUterine sound HysteroscopyAll of the above  <response>: D i.e. All of above Investigation of choice in displaced IUD is Ultrasound, but we can also diagnose this by X-Ray abdomen metal in IUD produces radioopaque shadow Hysteroscopy Endoscopic visualization of uterus. 