Is this ever acceptable?

[Guest219794]

access port

draw 10 ml blood, in a srynge, as though to waste

draw labs

re-instill original 10 ml blood

this was not done in a closed system.

is this ever acceptable?

[casi, ASN, RN]

In school we were taught that if you didn't want to waste blood you could flush draw back reinstill pull back reinstill a few times without disconnecting the syringe and it would be safe to draw the labs off that, but never toss your 10ml syringe to the side to put back in the central line.