Sorry, this maybe sounds like a silly question.
Do we have to flush the catheter lumen first before drawing blood from it, and what's the rationale for that?
Not every CVAD is going to yield a blood return much less draw a full sample. Flushing first removes the previous locking solution and helps to determine if there is any obstructions that prohibit good fluid flow. So flushing is a good idea.
Lynn Hadaway, M.Ed., RN, NPD-BC, CRNI
Lynn Hadaway Associates, Inc.
PO Box 10
Milner, GA 30257
Office Phone 770-358-7861
I have never practiced this in my 20 plus years, I noticied it when I was being oriented from a young infusion nurse. You say it is a good idea to flush prior to removed previous locking solution, but I thought the waste serves that purpose. My question is where did this thought come from and why do you say not every CVAD's yields blood and maybe not enough. I know that happens but my understanding is that they should and can cause complications of infection and failure if not fixed. Now I was a nurse trainer for Cathflo, am I brainwashed, lol. Or should CVAD's not be fixed if no blood return?
Denise Doscher RN, VA-BC, CRNI