We have a situtation that we are unsure of how to proceed. Patient with no veins but has a port. He requires therapeutic phlebotomy every 4-6 weeks (aproximately 450-500 ml blood).
Can we use the port for this procedure?
Do nurses do this procedure?
What size syringe? Is 60 ml ok?
Thank you in advance for any help or guidance with this situation
Yes, nurses do this procedure and you will find many previous discussions here about this. Do a search of the site to see previous discussions. Lynn
Lynn Hadaway, M.Ed., RN, BC, CRNI
Lynn Hadaway Associates, Inc.
126 Main Street, PO Box 10
Milner, GA 30257
Website http://www.hadawayassociates.com
Office Phone 770-358-7861
Thank you! It looks like at this point it is a risk vs benefit assessment to decide whether it should be attempted. For the case we had in mind: the doctor did the procedure and it went well. There was concern that a 60 ml syringe would cause too much pressure on the port so he used a 10 ml syringe. The procedure therefore took a long time!
Would there be concern with using a larger syringe?
We also wondered about using a stop cock for the procedure so that the lumen didn't have to be re-entered each time.
Thank you very much
Syringe
Pounds per sq. in
1 mL
197 psi
3 ml
96 psi
5 ml
40 psi
10 ml
29 psi
20 ml
18 psi
60 ml
12 psi
The psi generated by force applied to a syringe plunger ONLY applies to injection from the syringe. It does not apply to aspiration with a syringe as the opposite is correct. On aspiration, larger syringes created higher pressures because the syringe is larger and provides greater surface to pull harder. Lynn
Lynn Hadaway, M.Ed., RN, BC, CRNI
Lynn Hadaway Associates, Inc.
126 Main Street, PO Box 10
Milner, GA 30257
Website http://www.hadawayassociates.com
Office Phone 770-358-7861
Yes, lynn your right. Here is a nice tool for that.
http://tomfangrow.com/Syringe%20Pressure.html