Complement c1q

This is an important test used to measure the levels of C1q in the blood.

Venous blood
1 tests included
5 days turnaround



About Complement c1q

What is complement C1q?

Complement C1q is a subunit of the first complement protein C1. The complement system is a group of proteins present in the blood and body fluids which are part of the innate immune system. The complement system helps the body to fight infections by promoting inflammation, facilitating removal of pathogens, such as bacteria and clearance of cell debris. Deficiencies in C1 are associated with autoimmune conditions, such as systemic lupus erythematosus (SLE) polymyositis, glomerulonephritis, and Henoch-Schönlein purpura, as well as recurrent skin infections.  

Why take the test?

This test measures the levels of C1q in the blood and might be used to help investigate autoimmune conditions and recurrent infections.


What's tested

Complement C1Q

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.