You are probably there by now...Sunshine Hospital Paediatric section is connected to RCH, that may have been closer to you coming from Shep. A GF recently went to Sunshine with her 5yr old and she said they were brilliant and the Nurses were wearing RCH badges.
We are advised here in the West to go to Sunshine as the RCH has a long wait.

Hope he is ok.
Thanks for the tip