Because nearly the entire cardiac staff was up north at some kind of conference, and it was a Friday afternoon, the doctors were hesitant to tell me to go to the ER, but no one wanted to take a chance. They were concerned, but wanted to be sure that the pulse oximeter was reading correctly.
The solution they came up with was to find a pediatrician, cardiologist or a pulmonoligist locally to check her out, thereby avoiding the ER. A few phone calls later, and I found a pediatrician on a neighboring street. He was on his way out, so he kindly offered to come over.
After checking her out, he said she was fine and there was no reason to go to the ER.
So, instead, we had a nice peaceful Shabbat at home.