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CA 19-9


A cancer tumour marker test generally used to monitor cases of already diagnosed pancreatic cancer.

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check_circle1 test included
schedule1 working day turnaround   info
invert_colors Blood - finger-prick or venous    info
Special Instructions
Contact Medichecks prior to ordering this test online.

CA 19-9 (CA19-9)

About this test

CA 19-9 is a tumour marker test for a protein in the blood which is commonly elevated in pancreatic cancer. It is tested along with other tumour markers to investigate symptoms of pancreatic cancer. Elevated CA 19-9 is found in around 70% of people with advanced pancreatic cancer but is also present in other cancers such as lung and bowel cancer.

CA 19-9 is used to monitor treatment of diagnosed pancreatic cancer as well as to test for recurrence. It is not recommended as a screening test for cancer; a normal result does not rule out pancreatic cancer and an elevated result does not necessarily confirm the presence of pancreatic cancer. CA 19-9 can be elevated in non-cancerous conditions such as pancreatitis, bile duct obstruction (gallstones) and liver disease. 

How it works

Collect Sample

We send you an easy-to-use kit to collect your blood sample.

Post Sample

Post your sample to our lab in the prepaid envelope provided.

View Results

View results securely in your own personal dashboard.

Important Information

This test contains a tumour marker test. Please see your doctor if you are suffering any unusual symptoms which persist - do not use these tests to self-diagnose. Tumour markers are most useful when viewed in conjunction with a clinical examination. Results do not constitute a diagnosis of cancer and markers are often tested to monitor treatment when cancer has already been diagnosed, or to check that it has not returned. Cancer markers can be elevated in benign conditions and results often produce false positives. Sometimes tumour markers can be normal even though cancer is present. Please make sure that you think carefully about the risks and benefits before taking this test.

Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.

Tests Included

Tumour Markers

CA 19-9 (Pancreatic/Gut Antigen 19-9) is a tumour marker test which is mainly associated with pancreatic cancer and gastric cancer but can be raised in other cancers such as ovarian and liver cancer. Tumour markers can also be elevated in benign (non-cancerous) conditions and are not recommended as screening tests.

Finger-prick blood sample collection kit

We will send you your CA 19-9 (CA19-9) finger-prick blood test sample collection kit which contains everything you need to take your blood sample in the comfort of your own home. If you are unsure about completing a finger-prick blood sample collection you will have the opportunity to select a clinic-based venous blood sample collection or choose to go our London laboratory during the checkout process.

How to collect a finger-prick blood sample

Postage & packaging

Your CA 19-9 (CA19-9) test includes 1st class postage and packaging for you to send your blood sample directly to our laboratory for analysis. If you live in an area where you cannot rely on the post or you simply want to ensure that your sample arrives at the laboratory the following day, you may wish to send your blood sample guaranteed next day delivery for extra reassurance.

Private laboratory analysis

Your blood sample will be analysed at one of our chosen laboratories. You can be assured of fast, accurate results from one of our accredited independent providers of clinical diagnostic tests.

Interpretation of results

Our medical team will comment on out-of-range blood test results and give you follow-up advice where necessary. If you need it, a PDF copy of your CA 19-9 (CA19-9) test results can be downloaded for your doctor.

Secure online account with

Once you have placed your order you will receive login details to where you can manage your account, track your orders and view your CA 19-9 (CA19-9) test results.

Health and Lifestyle tracker

Stay motivated by filling in your online health and lifestyle questionnaire and seeing how improvements in your lifestyle can influence your test results. Your medical and family history gives us vital information when interpreting your results.

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