What rate do IV drips inject/draw at?

Easy question that the wiki never answered for me. A measurement like unit per tick would be nice. I also want to understand the mechanics of blood IV bags more, it seems to have to metabolize for a second before actually adding to the bloodstream but it works in some weird way no other chemicals do (which the wiki, again, does not go into detail about). Also did you know you instantly gib at ~1060 units of blood?

EDIT: 5u/tick(4 sec). Easier to figure out than I thought it was. Post is redundant now but I'll keep it up for documentation purposes I guess.

I can't figure out the direct rate of blood (chem) turning into blood (blood level) because the body purges excess levels of blood at some random rate but it seems 5u turns into around 2 units.

EDIT 2: I looked through the human.dm code for long enough to find the exact metabolism rate of blood, yay.

(former number=blood level / latter number = blood metabolism modifier)

551+ = 0.8

476-550 = 1

426-475 = 1.25

301-425 = 1.5

201-300 = 2

"else" = 3 (presumably <201)