Reference ranges differ between labs, so comparing two reports is close to meaningless.

How do I find the national register if I do not read the language?

Half of what people describe as tolerance is a change in the underlying condition, and the two need different answers.

Half of what people describe as tolerance is a change in the underlying condition, and the two need different answers.

Reference ranges differ between labs, so comparing two reports is close to meaningless. Not on hydromorphone but the pattern is familiar.

You have two changes at once here. You cannot attribute anything until one of them moves.

Where does the human data stop and the extrapolation begin? That is the whole thread.