Paediatric Lung Scan

Paediatric Lung Scan
Your Child’s Lung Scan
You must also read the appointment letter
and any enclosures carefully
What is a Lung Scan?
A lung scan is also known as a perfusion scan. It is a
diagnostic procedure, which checks the blood supply to
your child’s lungs. This is different to an x-ray and other
types of scans.
Is there any preparation for this scan?
There is no preparation for this scan.
Your child can eat, drink and take medication as normal.
If your child wears nappies, please bring a spare one with
you as it may be necessary to change it for the scan.
We have a video/DVD player in the department and some
videos (but no DVDs). You may wish to bring a favourite
video or DVD with you on the day of the scan, especially if
you feel that this would help your child to stay still.
Who can accompany your child for this scan?
As we only have one waiting room, we advise you not to
bring other children or pregnant women along to
accompany your child, in order to help to minimise the
radiation exposure to these people.
Finding the Nuclear Medicine Department and
Children’s Outpatients Department
The Nuclear Medicine Department is located in Zone C,
Department C16.
The Children’s Outpatients Department is in Zone B,
Department B11.
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How is the scan performed?
The appointment letter asks you to take your child to
Children’s Outpatients. A nurse or doctor will apply a small
amount of numbing cream or spray to a small area of skin
on your child’s arm or hand. After a short period of time, a
small venflon/cannula will be inserted into a vein in this
You will then be asked to bring your child to the Nuclear
Medicine Department. Your child will lie down while a
technician puts a small amount of slightly radioactive liquid
through the venflon.
Your child will then be asked to sit or lie next to a special
camera and the pictures will be taken. The whole
procedure takes about 20 minutes.
Your child will not be asked to remove any clothing, and
will not be enclosed in a tunnel.
You will be able to stay with your child at all times.
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What is a venflon/cannula?
A venflon, or cannula, is a small plastic tube which is
inserted into a vein with a small needle. The needle is then
removed and the plastic tube remains in the vein allowing
the technician access to the vein. When the scan is
finished the technician will remove the plastic tube.
Will inserting the venflon hurt your child?
The nurse or doctor who inserts the venflon is specially
trained in performing this procedure. The numbing cream
or spray that is put onto your child’s arm or hand will take
away the sharp prick felt when the needle is inserted.
How will this scan affect your child?
The injection and scan should not affect your child in any
For 24 hours after the test, your child should sit on the
toilet when passing urine (unless they are using nappies).
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Are there any risks from the radioactive liquid?
The radioactive liquid is used as sparingly as possible and
the amount used is carefully calculated according to your
child’s body weight. The benefits of this scan far outweigh
the small risk from radiation. The radiation dose your child
will receive is similar to the radiation that he/she would
receive from natural sources in a year.
Will the radiation affect other people?
The radiation dose to other people around your child is low
and is therefore not a cause for concern.
How will you get the results of your child’s scan?
You will not be given any results on the day of the scan.
The consultant radiologist will, within a few days, send a
report to the doctor or specialist who referred your child for
the scan.
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Travelling after your child’s scan
Some airports, seaports, train stations, bus stations and
major sporting event venues have installed very sensitive
radiation detectors. It is possible that these detectors may
be triggered by the small amount of radioactivity remaining
in your child’s body on the days following the scan.
Therefore, if you are planning to travel within seven days
following your scan, it is recommended that you carry your
child’s appointment letter to show to officials if necessary.
Additional Information:
If you have any concerns or questions with regard to this
procedure, or you need this information in another format
such as larger print, please telephone the Nuclear
Medicine Department on the phone number below:
Nuclear Medicine Department: 01225 824076
Date of publication: 12 August 2014
Ref: RUH/NM/086VER2
© Royal United Hospitals Bath NHS Foundation Trust
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