Hmmm...this may not be a popular opinion, but I think it's possible to be an effective nurse without loving or caring about the pt.
You don't really have to care about someone to know that if their ABG sucks, and they're having a lot of trouble breathing, they need to be intubated stat.
You don't have to care to know that someone is having an acute MI if you see huge tombstones on their EKG, and to take the appropriate steps in dealing with the situation.
Not that caring isn't important...I think it is. I think people who care, in addition to being mentally sharp and being hard workers, make the best nurses.
There are certainly people out there who are smart, but they're lazy b/c they don't care...and they are horrible nurses.
Hope this made sense...I picked up an extra shift for the ICU last night, and I'm a little mentally fuzzy now.