Sorry this is gross.
Peter tubes are a mess. i had to check them today with his mum. there was a lot of gungey clotting blood running down the top tube from his heart. The opening was very bloody and open (well more open than an open wound into the body is iykwim). i had to call the transplant co-ordinator, and they have got him a bed back on the transplant unit so they can find out what is going on.
it could be an infection, but it could be the throxine(sp?) interacting with his warfarin. so i am back to waiting again.