On this page…

What is a faecal elastase test?

This is a test that measures the amount of a digestive enzyme secreted by the pancreas. 

Why is this test needed?

The test is used to assess if your pancreas is producing enough digestive enzymes to help you 
absorb your food adequately.

How is the test carried out?

You will need to provide a small (cherry size) sample of stool. A sample pot will be given to you. The sample will be sent to the laboratory where it will be analysed. 

If you are currently taking pancreatic enzyme therapy medication (e.g. Creon / Pancrex / Nutrizym) 
this will need to be stopped for 5 days prior to providing the stool sample. 

Please bring the sample to the CF unit on the same day that the stool is passed.

What will the test result show?

If your test result shows that you are not producing enough digestive enzymes, you will need to be 
started on replacement digestive enzymes. These are capsules you will need to take with your food 
and some drinks. 

If your test result is normal, it shows you are producing enough digestive enzymes so you will not 
need to make any changes or have any new medication.
 

Contact us

If you have any queries relating to this information, please contact the Dietetics service.

About this information

Service:
Dietetics

Reference:
DT/011

Approval date:
1 April 2026

Review date:
1 April 2029

Click ‘show accessibility tools’ at the bottom of the page 

Accesibility tools snip.PNG

Then click ‘select language’  

dropdown menu reading 'Select language'

 

Interpreters for your appointment

Alternative formats 

You can use the accessibility toolbar at the bottom of your screen to: 

  • Change the text size 

  • Adjust the font 

  • Modify the colour contrast 

  • Use the translate function 

If you would like this information in another format, such as Braille, audio, or easy read, please speak to a member of staff. 

You can also print as well as download as PDF using the “Print this page” button at the end of the page.  

Staff will print a copy for you on request 

Important note 

This page provides general information only. It is developed by clinical staff and is reviewed regularly every 3 years for accuracy. For personal advice about your health, or if you have any concerns, please speak to your doctor.