G.W.
Hi E.,
I have always given my pedi a call first, even if it's the nurse and explain the symptoms to them. If they recommend that a trip to the ER is needed then I would go (I've never had to as of yet). Also, if it's on the weekend you have the option of the "Care Now" type of places instead of the emergency room. Those ER visits can be hours and hours so unless it truly is an immediate life threatening event, I would look for other alternatives.
G.