I think the best way to formulate a NCP is to find a good example of one for your problem, and observe the flow of information.
I started using NANDA, then got a palm-tx where I have nxdx10 (same as NANDA, but you get your relevant info in 1/10 the time). I can get a "general" NCP from that, then I fill it out more, adding details where necessary, omitting details where necessary. After a while, it becomes second nature. I now can get the majority of it without reference.
There are a few decent sources of info on NCP's, here is one. Hope this helps.
http://www.rncentral.com/nursing-library/careplans
-joaquin
The following member says Thank You: