When you draw blood from a central line, or an a-line, or a peripheral IV, you first draw out a few mLs of "waste" blood, then you draw your labs, then flush.
What do you all think about the idea of drawing your waste blood, drawing your labs, RETURNING THE WASTE BLOOD TO THE LINE, then flushing?
I had read about this on a previous post a while ago. I havn't done it.
And a seperate question, how many mLs is sufficeint waste?