Over the past few years, I have reviewed several laboratory-Invalid spécimens, due to oxidant activity. When I speak with the lab, I am told that there appears to be greater than 200 mcg/ml of nitrite equivalent (compatible with an invalid result). If I ask further, as to whether the specimen has greater than 500 mcg/ml of nitrite (to assess whether the specimen is adulterated), I hit a dead end. I am told that that analysis is not done. When I ask around, I have yet to find someone, or a lab, that does this adulterant assessment, of nitrites greater than 500 mcg/ml. Does anyone suggest a lab that does this extra analysis?
2 posts • Page 1 of 1