Doc?. Good day..i'm 24 yrs old and a marine engineer..last yr Oct 2014..I took a medical examination prior for my employment. I had undergone kidney and gal bladder ultrasound. After that they refer me to a urologist. The urologist said that I must undergo a ct stonogram. I took the said exam. And there is no stone found. And now sept 2015 I am taking again my medical examination for my next employment and again they want me to go to a urologist. Can I show them the result of my ct stonogram last year or I need to undergo a ct stonogram again? Please give me an advice. Many thanks.