Forum topic

5 posts / 0 new
Last post
Sandy DAmico
Can someone please refer me to the standard referencing no blood sampling through a midline? Thank you.


Chris Cavanaugh
INS Standards 2006 #37

The INS standard that addresses Midlines and blood drawing is #37, Under practice Criterial II, Item H--"Midline catheters should not be used routinely for blood drawing"

Chris Cavanaugh, RN, BSN, CRNI, VA-BC

And this INS standard is

And this INS standard is based on the fact that there are no studies or reports of any kind about the success or failure of drawing blood samples from a mildine catheter. A midline tip location is still within a peripheral vein where the blood flow and vein diameter is much smaller than the SVC. There could be an additional risk for vein irriation with frequent blood draws, but we simply do not have any studies on this issue at all. Lynn

Lynn Hadaway, M.Ed., RN, BC, CRNI

Lynn Hadaway Associates, Inc.

126 Main Street, PO Box 10

Milner, GA 30257


Office Phone 770-358-7861

Michelle Todd CRNI
 We do use midline catheters

 We do use midline catheters routinely for drawing blood and have not had any issues. 

Michelle Todd, CRNI--Head PICC Nurse, Vibra Specialty Hospital of Portland [email protected]

Gwen Irwin
No blood sampling through a midline?

You should publish your outcomes!

Gwen Irwin

Austin, Texas 

Log in or register to post comments