Ah, Night Float. I remember you well. If you have a PDA, and haven't already downloaded the ePocrates program, do that. Nothing like being on roller skates the whole night from the time the gun goes off around 5 PM until 8 AM the next morning; you might get two to (if you're really lucky) four hours of sleep. If you are adjusting meds, you don't want to go looking for a PDR for each call you get from nursing. Trust me on that. If you want, you can use the little pocket pharm book that all have as well.
The key I found with Night Float is, no matter how much you would like to, there is no way you are going to know the details about 60 some-odd patients that are not yours. Depending on your hospital this number may average smaller or larger. When you accept the sign-outs for the float, I found that the nitty gritty is to ask: of all of that intern's patients which ones are unstable; who might have a change in status overnight; what labs do you need to check overnight (if that is the case); what specific allergies they have to meds; what specific drugs, albeit not an allergy per se, can you NOT give for some idiosyncracy of the intern or the attending; list of meds they are on; and anything else that the intern feels needs to be flagged. There is no way you will know the history of each intern's patients in a thumbnail sketch. Just use the intern's list of medical problems as the history. It's enough. The idea of Night Float is just to put out any little fires that may start overnight. Rarely will you find the floor patients crashing and need to be transferred to the MICU in the middle of the night, but it does happen. Hopefully it won't happen to you on your first night as it did with me. I think those are the bare bones of the rotation. I did it that way after the first night when I realized I had three patients with the identical clinical history and the same age and I thought when I needed to see one it was one of the other ones. Keep it simple and you'll be OK. Good luck.