Alpha 1 antitrypsin blood test

This is an important test to help diagnose AAT deficiency.

Venous blood
1 tests included
5 days turnaround



About Alpha 1 antitrypsin blood test

What is alpha-1 antitrypsin?

Alpha-1 antitrypsin (AAT) is a protein produced by the liver which travels in the blood to protect tissues from the body’s own immune system. AAT has a particularly important function in the lungs where it reduces the activity of an enzyme responsible for breaking down proteins. The activity of this enzyme must be controlled to prevent damage to the lungs.

AAT deficiency is a disorder characterised by low production of the AAT protein. Without enough AAT present to protect the lungs the risk of lung disease (emphysema and chronic obstructive pulmonary disease (COPD)) is increased. Some people with AAT will also develop liver problems if the liver cannot get rid of the protein normally.

AAT deficiency is caused by faulty genes and is inherited which means that there is a chance it can be passed from parent to child.

Why take the test?

This test measures AAT in the blood and can be used to help diagnose AAT deficiency. This test may be helpful to patients with emphysema or COPD, children showing signs of liver disease or those with relatives already diagnosed with AAT deficiency.


What's tested


How it works



Purchase your Kit

Just order a test online and get your kit delivered right to your door unless you are ordering a COVID-19 Fit to Fly test where you will be given appointment options to attend our clinics across the United Kingdom for a nose and throat swab PCR test at the checkout stage.



Take your test and post

Follow our simple instructions to take your sample and post back the enclosed prepaid envelope to our accredited lab for processing. We also offer home or workplace visits by a qualified nurse. For COVID-19 Fit to Fly tests you must attend one of our partner clinics for our trained collection officers to take your sample. You will then have the results emailed to you.



Get results directly to your dashboard

You will receive an email notification from our medical team when your results are available on your secure personalised health dashboard.