I can't vote but just wanted to share my most recent Peth test experience. I had my blood drawn and right before she wiped the site with alcohol, and as she was drawing it she says to me, "I don't think I was supposed to clean your arm with alcohol". And I'm just looking at her like how would I know? So she draws my blood, puts it down, leaves the room and like 20 minutes later she apologizes and says the site needs to be clean with betadine. And I'm just like whatever draw it again, I don't care! So she cleans the site with betadine but she drew it in the same spot that was previously swabbed with alcohol, so I don't even know if it made a difference. Do I need to have a Ph D in chain of custody and Peth collection to ensure I don't have a false positive? So annoying!