C1 esterase inhibitor is a protein which is produced mainly in the liver and is found in the fluid part of your blood.
C1 esterase inhibitor controls C1, which is the first component of the complement system.
The complement system is a group of proteins that work with the immune system and play a role in the development of inflammation.
This test is useful where a person has signs of hereditary angioedema (C1 esterase inhibitor deficiency).
C1 esterase inhibitor deficiency causes swelling of face and throat. Gut swelling may cause severe abdominal pain, which may be mistaken for acute abdominal conditions such as appendicitis. Dermal swellings are deeper and larger than urticaria ('nettle rash'). They may be painful and are not itchy.
Onset of symptoms is usually in adolescence but may occur at any age. Occasionally C1 esterase inhibitor deficiency is asymptomatic.
Results for this blood test are available within approximatley 7 working days after the blood sample arrives at the private laboratory.
A specially labelled blood sample collection kit with details of a clinic locally to where you live or work where you can go to have the blood sample taken. The blood sample collection kit will be unique and coded specifically to you.
Special pre-paid packaging is provided to return your blood test sample safely, by first class post, to our laboratory for testing.
The blood sample is tested at an accreditted private laboratory to ensure an accurate blood test result.
You will have secure online access to your blood test result held on our secure servers. If required, we will also send you a hard copy of the blood test result by post.
Our servers are secure and protected by the latest SSL certificate. The 128bit SSL encryption assures that information is kept private between our servers and your web browser.
Your blood test results will be explained. Our medical advisors and Doctors are available to answer any queries you may have regarding your blood test results.
Your personalised Helpline Card will allow you access free confidential medical advice.
C1 Esterase Inhibitor
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