What is a scan?
This is a test in which a small amount of radioactivity is used
to obtain pictures. The pictures will help your doctor to understand your illness.
Is the radiation dangerous?
No. The amount of radiation you receive is small. It is similar
to that from an X-ray examination.
What is involved?
The radioactivity is usually injected into a vein in your arm.
You then have to wait 3 - 4 hours before pictures are taken depending on the type of scan
being done. The pictures will be taken with a 'Gamma Camera' and you may sit on a chair or
lie down on a bed. It is not normally necessary to undress.
Is there anything I should tell the staff before the
scan?
Yes. If you are a woman please let tell us before you have
the scan injection if you are pregnant or think you are pregnant. Also please tell
us if you are breastfeeding. You will then either be given a new appointment or advice
will be sought from your doctor. You should avoid close contact with babies or small
children for the rest of the day following the isotope injection.
Do I need to prepare for the scan?
Your appointment letter will give you any special instructions.
For most scans, you can eat and drink as usual.
If I am taking tablets or other drugs, do I need to stop?
For most tests there is no need to change regular treatment. If
you do need to stop taking a drug, your appointment letter will tell you.
Will it hurt?
Only the pinprick of the injection will hurt a little - it will
feel similar to having a blood test done. It is highly unusual to feel any ill-effects
from the injection. It does not make you sleepy or prevent you from driving a car.
Can I bring a friend / relative with me?
We would welcome this as long as they are not young children.
Between the injection and scan you are free to go home or go into town. If you use
hospital transport, we can arrange for you to wait on a ward.
What happens after the scan?
You may go home or return to work. You may be asked to have extra
drinks for the rest of the day to help 'wash' the radioactivity out of your body.
Results
The results of the test are sent to the doctor who requested the
scan. This usually takes about a week. For all other queries please call the department on
01234 355122, ext. 2823.
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