For those of you who saw and responded to my last post...thank you for your thoughts and comments. I'm back home with Blue and as I suspected she would, the Vet prescribed a round of antibiotics. Hopefully that'll be the end of his course of treatment and he'll experience a quick recovery and get back to the business of gaining weight. For now I've got an alarm set for 5a and 5p so I don't miss any doses. Will also be assuring some solo nursing time to help him out while he's a bit under the weather. He's still acting normal... doesn't look skinny or dehydrated and fortunately the Vet saw nothing other than his elbow that caused her pause. His mobility seems a bit compromised, understandably, due to the swelling which seems to have increased throughout the day as I waited for his appointment. She noticed the scratches I mentioned and agreed with my thought that he may have been scratched by one of the other pups while he/she was trying to fight for position at the milk bar. Will keep everyone posted on Blue's progress... she did say not to expect much improvement for a few days. :-(