I received a clinical warning by my instructor. I started the process of grieving it and the instructor in turn dropped the clinical warning after a discussion with my lecture professor. Instead I was given a "clinical enhancement tool" which is not disciplinary, but extra practice in the lab which I very much appreciated anyway. Note that my school was a highly respected university and was very forward thinking in not punishing students, and actively worked on improving nursing culture.
I will tell you the details of my story to help you make your decision. I was getting ready to do my first urinary catheter insertion. I had volunteered to be first as I was a very eager student. When I opened the kit, it looked nothing like the ones we had used in skills lab. In skills lab, there were foil packets of lubricant. This one had syringes full of lubricant, and because I had never seen that before, I thought there was no lubricant in the kit. I was totally shocked and I guess I panicked a little bit. My instructor was not gloved up. My instructor said "Before you do anything, I want you to tell me what you will do next." I replied that I wasn't sure because I didn't recognize what was in there. I asked her where the lubricant was and she said "You tell me." I said I didn't know. She then said "I'm not going to let you do this. Take your gloves off and tell the nurse you did not put the catheter in." So I did. The nurse asked me why. I told her that my instructor said I was not allowed. She was thoroughly annoyed with the instructor. The instructor then took me into the linen closet and lectured me for 45 minutes about how I had embarrassed her.
Then I got a clinical warning.
Immediately, I looked in my handbook about what the warning meant and the process by which it could be disputed. The first step was an email to the clinical instructor. I asked her why she thought I deserved a warning and not a clinical enhancement tool and she replied that I would get both. The next step was a meeting with the lecture instructor. I sent an email to the lecture instructor who asked me a few questions about what happened. I answered them and she said she was not sure why I would get a clinical warning and would I like a meeting. I stated yes. In the next couple of hours I got an email stating the warning was dropped and an explanation of how to complete the clinical enhancement tool. I did not dispute the clinical enhancement tool as I very much appreciated the one on one time in the lab I got from a different professor.
So it worked out. And it was fully worth it as a clinical warning is a one time thing, the second offense is failure of clinical. My lecture professor explained that clinical warning is not meant for students who struggle with a skill, it's meant for students who come late, disobey rules, etc.
The rest of the semester that clinical instructor gave me hell. She would regularly come and ask me very detailed questions on my patient's history; looking for me to slip up somewhere. She was extremely hard on me, and would talk about me to the nurses. I toughed it out. She taught me a lot in fact, because she was so hard on me, I worked twice as hard, learning about meds the patient was no longer taking and disease processes that were resolved 10 years ago. My next clinical instructor told me I needed to learn to pare down unimportant facts from my report!
In the end, the instructor said she was glad that we were able to get over the problems we had. I don't know if it was heartfelt, but I still appreciated that she said it.
I hope I never run into her again. I hope I never, ever have to work with her. But if I did, it would be basically okay.
Just know that even if you get the clinical warning dropped, you will still have to deal with this person who made the warning. Be diplomatic. In your grievance, state facts and leave all emotion and judgment out of it. Do not say that the person is out to get you, even if they are. Do not state that the instructor is lying. Just state the facts that support your case.
If you truly made the mistake you are being accused of, admit to it fully and state what you've learned from the mistake. I learned that lubricant can be in foil packets, syringes, etc. I googled images of urinary cath kits and familiarized myself with them so that would not happen to me again.
Also, look at what a clinical warning means. Is it a serious disciplinary measure or is it a big fat nothing? If it means you only get one more chance or you're out, then it's worth grieving. If it means that you need extra time in the lab (like my clinical enhancement tool) then swallow your pride and view it as a chance to get better.