URMC / Encyclopedia / Collection Prostate/Rectal Ultrasound Ultrafast CT Scan Uniparental Disomy Upper Gastrointestinal Series Upper GI Endoscopy Urea Nitrogen Clearance (Urine) Uric Acid (Blood) Uric Acid (Synovial Fluid) Uric Acid (Urine) Urine Culture Urine Cytology Urine Flow Test Urine Protein (Dipstick) Uterine Artery Embolization