Your math appears to be correct.
A fatal dose may not be the “therapeutic dose”, the level at which it has an effect.
Thanks.
The “reporting limit” for Meth is 5.0 ng/ml, so, I assumed 19 ng was probably a non-event for health and behavioral issues.
Floyd's fentanyl level - 11 ng - is a whole new story.
The average fentanyl level for terminal cancer patients at death is 12 ng, and most of them are unconscious for days before they die.
The first reports I read about the George Floyd death said that one policeman heard Floyd snoring, and a second policeman said he thought Floyd fell asleep.
That sounded completely bizarre when I first read it, but in light of the fentanyl screen, it sounds completely possible.
By the way - the knee on the neck was completely legal the day Floyd died. That method of restraint is carefully described in the Minneapolis Police manual.
Today, the MPD revoked all forms of “neck restraint.”
I sprinted over to the Police Manual and copied the entire section before it disappears forever.
The more I read about this case, the more I think the four officers will get hung juries on all charges, or get released on appeal.
Have you read the Autopsy Report?
Floyd's neck, throat, and upper back had ZERO trauma - externally and internally.