Hello Jacel ! And welcome.
As I have never worked Renal/Dialysis in a hospital or acute setting, I, too, would not be able to answer some of your questions. I could only speak for working in a dialysis CLINIC.
However... as to your questions re "profile and work ethic" on a renal floor, I believe you already have the answer. You are EXCITED about what you have learned there... something "clicked"... you want to know MORE... you are INTERESTED in the field. Your interest and excitement sounds genuine, so I believe you would do well there. It is the same for nurses in ANY chosen field.. there is a spark.
There IS much to learn about renal issues, labs, nutrition, etc. You must also be aware and understanding of the patient's difficulty adapting to his/her situation as well as noncompliance with the regimen. This takes much patience and perspective. You must be able to work WITH the patient and find ways to motivate the patient to meet goals without being condescending, if you understand what I mean.
I'm sure there are others here who could answer more specifically
and addresse your questions re the hospital end.
The best to you !