Hi Lynne,
I know INS 2016 standard of practice suggests 3mL discard volume has been shown to be sufficient for most CVADs in pediatric population. I am wondering if there are other rules such as 3x priming volume that has been shown to be adequate? I ask because 3mL may be too much to discard for some of the neonatal patients who have 2.7Fr broviac lines. Thoughts on other research/consensus out there for appropriate discard volume prior to labs from CVAD based on catheter priming volume?
Thank you,
Nina
I'm sorry, I just discovered the search capabilities and did read through some of the other forum discussions regarding this topic that has been addressed. However, the most recent discussion was in 2011 so if there has been any new evidence or research presented, I would love to hear about it. When I was doing some literature searches, it seemed like the discard volume was all over the map with some studies saying 2x priming volume was enough to others stating it in minimum mL format (3mL, 5 mL) etc.
Thanks for your input!
Nina Rosché RN, MSN, PNP
UCSF Children's Hospital Oakland
Phone: (510)428-3885 x 2527
[email protected]
What you have in the INS SOP was the most recent up to 2015. I did not find anything else when I researched this issue but there could be something new in 2015 or 2016. I would recommend you forget the discard method and use the mixing method to draw blood from a CVAD, also referenced in the SOP on phlebotomy, eliminates all discard volume. Lynn
Lynn Hadaway, M.Ed., RN, NPD-BC, CRNI
Lynn Hadaway Associates, Inc.
PO Box 10
Milner, GA 30257
Website http://www.hadawayassociates.com
Office Phone 770-358-7861