The diagnosis can usually be made with either an upright intravenous pyelogram (IVP) or renal ultrasound. In these cases, renal function may be lost if repair is not performed expeditiously.
Heparin IV is used in the inpatient setting and can ... for minimally invasive and diagnostic procedures (retrograde pyelogram, IVP, cystoscopy under anesthesia, ureteroscopy).