Hey, I understand how nervous you must feel. You put time into doing something and when a patient has a reaction, you wonder if it's because of something you did. It sounds more like an allergic reaction, instead of Redman's. Imagine a lobster. Except that's the color of the person. That's Redman's. I had a patient with Redman's syndrome, and.. the weirdest thing... you could've drawn a line right across his chest. From that line and up, his body was red. Below that, everything was normal. He was also complaining of a warmth feeling.. like he had "just had a shot of gin."
I run Vanco 250ml over 2 hours.. so that's 125cc/hr. That's how I've been taught. In the case that a patient has Redman's (like my patient's), it was because it was run too fast for that patient. So, since my patient needed the Vanco, the next time I ran it over 50-75 cc/hr and no more reaction for the most part.
All in all, the patient ended up okay with some Benadryl and you learned something valuable. Check up with your nursing staff to see the appropriate way to administer the drug. Otherwise, everything else was right.