While the hospital is only 1/2 mile away, you are a paramedic and should deal with the situation if you have the ability and not pawn it off to the ER. Just because the patient has a pulse now doesn't mean she will still have in 15 sec. Since the patient is alert and appropriate we know that...
Just a couple of thoughts
The way I see it there are a couple of reasons to carry both. First, with morphine, the peripheral pooling/ decreased pre-load effect that is detrimental in trauma is very handy in the treatment of CHF, second, Fentanyl has a much faster onset of action than morphine...