In early January, I took a blood test called C4a. As expected, the results were not back at my last visit. He was to call me if anything unexpected came back. I believe he was using it as a general marker of my current inflammatory level and to see if anything crazy high came back. If it were crazy high, he may have wanted to investigate any mold exposure.
Turns out it was high, but not crazy high. (over 7000 with normal being 0 – 2830). C4a is NOT at all specific for Lyme. It is just another piece of the puzzle that can be monitored. I am feeling better since the test was taken so he believes that it would likely be lower at this point. This blog has some information you may find interesting if you are looking for more.
From another site: survivingmold.com
These short-lived products are re-manufactured rapidly, such that an initial rise of plasma levels is seen within 12 hours of exposure to biotoxins, and sustained elevation is seen until definitive therapy is initiated.
The rest of the visit was a symptom check and deciding to stay the course a little longer.