A SeHCAT study is a scan to test how well your gut is able to absorb bile salts.
This test will tell us if the bile salts are absorbed normally into your bowel or if they are being excreted from the body too quickly.
You have been given three appointment times.
• On your first appointment we will ask you to swallow a small capsule.
• The capsule contains synthetic bile salts which are slightly radioactive. We can then track its progress through your bowel.
• The second appointment time is for a scan of your abdomen, this will take approximately 15 minutes. If possible, we would ask you not to open your bowels between these two appointment times.
• Your third appointment time is for another scan. This is so we can assess how much of the capsule has been absorbed by your bowel and how much has been excreted.
The radioactive capsule is ordered especially for you so if you have any queries, or are unable to keep this appointment please notify us by telephone as soon as possible. We are available Monday to Friday 9am to 5pm on 01253 956789
There is no need to get undressed for the scan but we would like you to remove any metal items from your person such as keys, coins, mobile phone or a belt. Most medications are fine to continue but if you are taking anything called Cholestyramine (Questran, Prevalite), Colestipol (Colestid) or Colesevelam please let us know prior to attending your appointment. This medication may need to be stopped prior to the test.
Depending on which scanner we use, the scan may be done with you standing up or lying down. If you have difficulty lying down or standing for any length of time please let us know.
You may eat and drink as normal once you have taken the capsule. The capsule will not make you feel any different, so you will still be able to drive a car.
The results will be sent to the hospital consultant, who referred you for the scan. Some doctors will write to you with the results, and some will send you an appointment to come back to the Outpatients clinic.
The capsule contains a small amount of radioactive tracer which emits gamma rays (these are similar to x-rays). We use the smallest dose possible to provide as much information as we can about your condition. The radiation dose is very low, and is similar to the natural background radiation we all receive from the environment over a period of 2 weeks. The results of your scan will give your doctor useful information about your condition and will help them plan your treatment. The benefits of having the scan far outweigh the tiny radiation dose you will receive. Further guidance has been published by Public Health England. Visit website – https://www.gov.uk/ government/publications/ionising-radiationfrom-medical-imaging-examinations-safetyadvice Alternatively, use an internet search engine to search for “PHE medical imaging ionising radiation”. The capsule contains gelatin and colours Quinoline Yellow and Erythrosine. If you are allergic or sensitive to these products please let us know.
Directions to X-ray Central
X-ray Central is situated in Area 4 off the main hospital corridor and is signposted. Please follow the signs for X-Ray Central and report to reception on arrival.
Relatives and Carers
If you require support during your appointment you may bring one accompanying adult with you.
They will not usually be allowed into the examination room. If you have any additional needs, please let us know prior to your appointment.
Car Parking
Car parking is in the multi-storey car park at the main entrance of the hospital.
Car park charges apply at this hospital. Please bring change with you if you are planning to park on site. You can pay via debit/credit card at the multi-storey carpark.
Other facilities available
At the main entrance to the hospital there are shops and a café and selling light meals and snacks. There is also a large restaurant for staff and visitors to use.
