It's a mess. 60% of bankruptcies in the US are due to having a health condition.
A lot of people on this forum have had great difficulty in sending blood serum samples to ARUP via LabCorp and Quest; this is because often LabCorp and Quest will accept the blood sample, but perform the test internally in their own lab, rather than sending the sample out to ARUP in Salt Lake City (but their own internal labs do not use a sensitive enough method to detect chronic CVB and EV infections; only ARUP lab uses the highly sensitive neutralization method of testing that can detect chronic infection; this is what Dr Chia found).
So that's why I was wondering if it might be easier to send your serum sample to ARUP Lab directly, by-passing LabCorp and Quest.