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Please complete your appointment details FROM YOUR APPOINTMENT LETTER and bring this leaflet with you.
What is ‘nuclear medicine?’
Nuclear medicine refers to the medical use of radioactive tracers for the diagnosis and sometimes treatment, of medical conditions.
Nuclear medicine tests are helpful to diagnose a wide variety of illnesses. The clinician that referred you to nuclear medicine will have already explained to you the reasons for having this test.
This leaflet is to explain your scan and provide you with some general information. The procedure will be fully explained to you when you attend. We are happy to provide additional information before hand and our contact details are on the back of this leaflet.
Benefits of nuclear medicine tests and are they dangerous?
Nuclear medicine procedures are commonly used diagnostic tools that utilise ionising radiation to obtain important clinical information.
There are small risks associated with the use of ionising radiation. Ionising radiation can cause cell damage that can, after many years or decades, contribute to the development of cancerous cells. This procedure carries only a very small chance of this happening to you.
Your doctor will have considered the risk and benefits of having the test before referring you to us. The benefits of the test outweigh the potential risk.
Will it hurt?
No, you will only be asked to drink a cup of water containing a radioactive tracer. There are no side effects from the tracer, and no restrictions following the test. You will be able to continue with your usual daily activities.
What is a Liquid Gastric Emptying study?
This test is used to access how well your stomach empties after a drink, and can be used to help diagnose gastric problems such as gastroparesis and dumping syndrome.
Do I need to prepare for the test?
You must not eat, drink, smoke, or chew gum for a minimum of 6 hours before your appointment time. You may still drink small amounts of water, especially to take tablets. You must not have any caffeine the morning of your test. If you are diabetic please bring your medication with you.
Stop taking all medications that influence gastric motility (except diabetic and heart medication) 48 hours before your appointment. If in doubt please contact the department of Nuclear Medicine. Avoid clothes with metal buttons. You may be asked to remove metal objects (buckles, coins, jewellery) while the pictures are being taken.
How is the test carried out?
There are two parts to this test.
Drink: You will be given two cups of water to drink. This water will contain a radioactive tracer, but will not taste, smell or feel any different to normal.
Scans: We will then perform a one minute scan of your stomach every 20 minutes for 1 hour. The pictures are usually taken with you lying on a bed. You will NOT be going into a ‘tunnel’, but you will need to lie still. Occasionally additional imaging is required so you may be asked to stay for up to 3 hours.
You will not be able to eat, drink, smoke or chew gum for the duration of this test. Between pictures you will sit in a waiting room, but please refrain from leaving the department until the test is complete. Therefore we recommend that you bring some form of entertainment, i.e. a book/magazine or computer.
If you have mobility issues or are unable to lie flat on a bed please inform the department well in advance of your test.
How long will the test take?
Up to three hours may be required depending on how many pictures we need to take. Please be aware that the material used for this test is very expensive.
What if I am pregnant or breastfeeding?
It is usual to avoid radioactive tests during pregnancy. Small amounts of some radioactive substances may appear in breast milk. Patients who are breast feeding and those that know, or suspect that they are pregnant should contact the department before attending to discuss this further and should also inform the department upon arrival.
What happens after the test?
You are free to go home or return to your ward. There are no restrictions following this test.
Your results will be reported and available from your referring clinician/ team or GP within 3 weeks after your appointment.
Due to the small size of the waiting area in Nuclear Medicine we ask that you please limit the number of people accompanying you for your visit.
Please be aware that most airports have sensitive radiation monitors which detect very small amounts of radiation and may detect a residue trace from your test. We advise you keep and travel with your appointment letter if you are travelling within the next few days.
How to find/contact the department:
The Nuclear Medicine department is located on level 3, in the outpatient end of the hospital. If you have any queries or cannot make your appointment please contact the department as soon as possible on 01223 217145.
We are smoke-free
Smoking is not allowed anywhere on the hospital campus. For advice and support in quitting, contact your GP or the free NHS stop smoking helpline on 0800 169 0 169.
Help accessing this information in other formats is available. To find out more about the services we provide, please visit our patient information help page (see link below) or telephone 01223 256998. www.cuh.nhs.uk/contact-us/accessible-information/
Cambridge University Hospitals
NHS Foundation Trust
Hills Road, Cambridge
Telephone +44 (0)1223 245151