A renogram is a 30-40 minute dynamic scan of the kidneys, similar to a video. The scan is taken to look at the drainage of the kidneys and see if there is any obstruction.
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
Before your scan, you should drink 2 to
3 cups of any fluid, to make sure you are well
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
What happens during my
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
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
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
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.
'The treatment I have received from all the staff has been
excellent and could you extend my thanks to them all. A very
thankful and relieved patient'.
Patient, Dermatology Outpatients Department, University Hospital
of North Durham