This scan provides detailed information on the kidneys, ureters and bladder and how they are working, in particular if they are blocked.

We will need a letter of referral from your doctor to perform a renal tract scan for you. Your doctor may refer you if you have any of the following:

• Unexplained haematuria (blood in the urine) to exclude kidney stones or tumours
• Unexplained loin or back pain
• A previous kidney tumour
• Recurrent urinary tract infections requiring investigation of a structural cause

You will need to fast (no food, but plenty of water) for six hours before you come to the centre.

The actual time you spend in the scanner is about 30 minutes. Further details can be found in the Your Visit section.