Autosomal dominant polycystic kidney disease testing involves what kinds of tests?

See below. The current diagnostic criteria to detect cyst in the kidney is by ultrasound, however this is not a 100% accurate way as very small cysts can be missed. Ct scan can detect cysts which are smaller like 1 mm.There are no diagnostic criteria dveloped for ct scan yet. In case a young kidney donor wants to donote, but make sure he/she doesnot have the disease, there are genetic tests available.