Syringing blood doesn't seem to affect your blood level

[Houka]

Blood syringed out of a person still does the old 'blood magically appears from nowhere' thing. The blood pool that drains from injury does not drain from drawing blood through a syringe. Despite this, I know there's a mechanic where chems in the blood deplete if someone is bleeding significantly.

However: Blood has a very slow replenishing rate. You may have just been replenishing it faster than you could draw it. Syringes take a really long damn time to transfer blood from a person to a container.

Err, I meant it /may/ still do the 'magic blood from nowhere' thing, to explain this scenario.