Where to test ceruloplasmin levels?

This is quite important as I am following a NB program and I am taking Limcomin.

The hTMA test showed I had a copper imbalance, and I am reading many mixed things about taking copper in these cases. My copper level was 19.6, which indicates it was being put into the tissues (does this suggest adequate ceruloplasmin?)

I keep reading about having ceruloplasmin tests, but where can I get a good blood serum analysis? I am not sure if my local GP can perform them, and if they are even that reliable.

I live in the UK, so if anyone knows where I can have one performed. Please, I beg you, tell me. Tweet