Renaa15

Hi there member of allnurses, I want to clarify a question about IV infusions and I hope this makes sense! Scenario: I have a patient that is on an already established insulin infusion (I have never set one up myself and cannot locate the policy/procedure anywhere online!)..this patient is getting blood sugars taken q1h and insulin titrated per sliding scale. I notice the insulin infusion is running into a peripheral site with a dual lumen attachment. Lumen#1 - portless tubing insulin via pump. Lumen#2 - KCL40-D51/2NS at 100ml/hr via pump. The patient is having nausea and has PRN zofran IV ordered. Can I use the KCL IV fluid line to run the zofran through? Does the peripheral dual lumen attachment prevent any mixing of meds? In other words, would I still need to look up y-site compatibility even though the zofran technically goes through a seperate lumen? (But same peripheral site) Thanks in advance for any help you can offer!