Emergencies happen, and it's good that you were understanding and didn't get upset with your pup.
I'm sorry to hear your nephew isn't feeling well. How is he now? When my nephew was just 3 weeks old he came down with RSV, and couldn't breathe. It was horrible. He spent a week in the NICU at the children's hospital center, and it was a very scary time. I hope the little guy feels better soon!