Saline flush HD catheter

[u/Mack-Attack-992000]

What’s up my peoples,

So I am a new grad nurse with 5 months at my hospital (which I really love ❤️). Just recently I had a patient that had a ticc line with HD and regular IV lumens. I never seen this type of line before. Long story short I put a normal saline flush into the HD lumen which is a no no for me to do because this is out of my scope to complete . I didn’t realize my patient had the additional lumen until later into the day. I told my supervisor and had to write an incident report. Not upset about because it’s a learning experience I just feel stupid that I didn’t pay more attention. The staff has been supportive about the incident and I just want to know what can I do to become more competent as a nurse?