Yes. Looks like it. I don't know what the test is offhand, but it might be a multi-aspect one where just one of the aspects is a maybe that people don't understand as that and freak out.

Although it is still toxic when ingested or inhaled. Dose needs to be higher though for at least ingestion, and inhalation has a longer period before symptoms start. Either way if you got a leathal dose you are pretty much screwed even if they know about it. My understanding is there is not they can do except pump you full of saline to replace what you are going to lose and hope that few enough cells die that you can pull through.