Hi everyone. I saw that REDLABS (now USA as well as Europe) updated their blood forms a few weeks ago and now you can test quinolinic acid in your blood. (Previously it was kynurenic acid only on the forms). Before this, I believe another way patients tend to measure quinolinic acid was to use the 24hr OAT urine test from Great Plains Laboratory. Just thought I'd share and would be interesting to see if any of KDM's patients have tested and got their blood tests back. If possible it would interesting for those who have to kindly report back here if they also have Borrelia or its co-infections tested as well (if they have high Quinolinic acid levels in their blood). On a related topic of neurotoxins, remember if you test for serum ammonia searching for a not uncommon Lyme disease finding of hyperammonemia, this can be normal, because in Lyme related illnesses the tissue levels of ammonia can be elevated (e.g. brain), but your blood levels are normal. Thank you.