Renogram (dynamic kidney scan)

What is a renogram?

A renogram allows us to look at how well each kidney is working. For this scan we will give you an injection containing a small amount of radioactivity called a tracer. This goes round in the bloodstream and is carried into the kidneys. It is then filtered out of your blood by the kidneys, similar to the way urine is produced, so that it accumulates in the bladder. We use a gamma camera to detect the radiation coming from the tracer in the kidneys, the tubes leading from the kidneys to the bladder (the ureters) and the bladder itself.

Is there any preparation for my renogram?

Before your scan, you should drink 2 to 3 cups of any fluid, to make sure you are well hydrated.

Please continue to eat normally, and continue to take your usual medication.

You should expect to be in the department for about one hour.

You must tell us in advance if you know you are (or think that you may be) pregnant, or are breast feeding.

What happens during my renogram?

You will need to lie down for about 40 minutes. We will place a needle in your arm to allow us to inject the radioactive tracer. We will also usually give you a drug called a diuretic which makes you increase your urine production. This means that you will need to urinate more frequently for a few hours after the scan. This allows us to see how well your kidneys are draining.

We will make sure you are as comfortable as possible for the scan, as is it extremely important that you remain as still as you can.

Will I feel anything during my scan?

The injection feels similar to having blood taken. There are no side effects from the radioactive injection. It will not make you feel sleepy or affect your ability to drive.

What will happen to my results?

The results will be sent within a few days to the doctor who referred you for the test.

What happens if I cannot keep my appointment?

If you cannot keep your appointment, contact the nuclear medicine department as soon as possible, so that we can offer the appointment to someone else.

If you have any questions about this appointment, or any queries about the examination, please phone 01325 743347 (Darlington) or 0191 3332218 (Durham) between 9am and 5pm, Monday to Friday.